Field notes, v656

135 UNIVERSITY OF CALIFORNIA MUSEUM OF VERTEBRATE ZOOLOGY

Digitized by the Internet Archive in 2017 with funding from CLIR https://archive.org/details/fieldnotesv65600eric

Erickson, M.M 1934 Arizona and California, along Colorado River Dec 28, 1933 - March 2, 1934 #119 - 440 pp.1-30 + species accounts, unnumbered Specimens collected belong to Accessions, and are included in:- Bird Catalog # Hammal Catalog #

M. M. Erickson, 1933 Palm Springs Riverside Co., Calif. 119 ♂ Ceromyias e. Dec. 28, 1933 178.8-99-20.5-21. 16.75 gms. 3 mi. N. Palm Springs, 452 ft. Riverside Co., Calif. 120 ♀ad. Thyromanes bewicki eremophilus 25-20 ft. Dec. 29, 1933 √121 ♀ad Snatchers 200 ft. Dec. 29, 1933. Both taken in Chino Cañon, Riverside Co., Calif. 122 ♂ Cerognathus Dec. 29, 1933 191-107-24-8. 19.08 gms. 1 mi. south Palm Springs, Riverside Co., Calif. 123 ♀ Cerognathus no embryo Dec. 29, 1933 155.8-81-20.5-7 12.85 gms. 1 mi. south Palm Springs, Riverside Co., Calif. 124 ♂ Cerognathus Dec. 29, 1933 166-91-12-8. 15.83 gms. 1 mi. south Palm Springs, Riverside Co., Calif. √125 ♀ad. Hylocichla guttata auduboni 28.21 gms. Dec. 30, 1933 √126 ♀ad. janco 17.15 gms. Dec. 30, 1933 √127 ♀ad. Hylocichla guttata 27.81 gms. Dec. 30, 1933 nos. 125-127, taken in Chino Cañon, 2450 ft., Palm Springs Riverside Co., Calif. Yuma √128 ♀ad. Sagornis saya Jan. 1, 1934 1 mi. above Laguna Dam, Imperial Co., Calif. fat √129 ♀ad Lanius ludovicianus excubitorides 45.71 gms. Jan. 1, 1934 7.6 mi. NE of Yuma on Laguna Dam road, Imperial Co., Calif. Little fat. Testes 4.1 x 3.7. √130 ♀ad Lanius ludovicianus excubitorides 47.26 gms. Jan. 1, 1934 5 mi. NE of Yuma on Laguna Dam road Imperial Co., Calif. very fat.

M.M. Erickson, 1934 yuma 2 √ 131 ♀ Jad. Epizella b. breweri 1 mi. below Laguna Dam, Imperial Co., Calif. fat. 11.14 gmo. Jan. 1, 1934 √ 132 ♂ Jad. Falco sparverius plalains 6 mi. NE of Yuma on Laguna Dam road, Imperial Co., Calif. varry 7.1 x 4.8, ♀ excessively fat. 122.08 gmo. Jan. 1, 1934 √ 133 ♂ Jad. Lagornis saya 1.5 mi. above Laguna Dam, Imperial Co., Calif. ♂ testes 1.9 x 9. other more rounded. very fat. 21.46 gmo. Jan. 2, 1934 √ 138 ♂ Jad. Lagornis saya, skeleton 1.5 mi. above Laguna Dam, Imperial Co., Calif. testes 2.5 x 1.3; very fat. 20.31 gmo. Jan. 2, 1934 √ 135 ♂ Jad. Gyrocephalus rubinus 1.5 mi. above Laguna Dam, Imperial Co., Calif. excessively fat. 14.46 gmo. Jan. 3, 1934 √ 136 ♂ Jad. Agelaius phoeniceus sonorensis. 7mi. NE of Fort Yuma, Imperial Co., Calif. Testis 2.0 x 1.2; no fat 61.20 gmo. Jan. 3, 1934 √ 137 ♂ Jad Agelaius phoeniceus sonorensis. 7 mi. NE of Fort Yuma, Imperial Co., Calif.; testes 2.3 x 1.5; no fat. 63.44 Jan. 3, 1934 138 ♂ Sigmodon 2 mi. above Laguna Dam, Imperial Co., Calif. 257-91-32-20 147.80 gmo. Jan. 3, 1934 139 ♀ Beromycus m. 2 mi. above Laguna Dam, Imperial Co., Calif. 158-66-22-18 26.97 + embryo Jan. 3, 1934 √ 140 ♂ Falco sparverius 4 mi. NE of Fort Yuma, Imperial Co., Calif. very fat. 104.83 gms. ovary 8.0 x 5.0. Jan. 3, 1934 √ 141 ♂ Coleptes cafer 2 mi above Laguna Dam, Imperial Co., Calif. ofat. 149.4 gmo. ovary 9.5 x 5.0. Jan. 3, 1934 skull 142 ♂ Beromycus m. 142-166-72-21-16.5 2 mi above Laguna Dam, Imperial Co., Calif. skull 143 ♂ Beromycus, m. 24.8 gmo 171-77-21-19 Jan. 3, 1934

M.M.Erickson 1934 Yuma Fort Yuma 3 skull 144 ♂ Peromyscus m. 16.80 gms. 151-68-21-16 Jan. 2, 1934 skull 145 ♂ Peromyscus m. 22.10 gms. 162.5-72-20.5-18 Jan. 2, 1934 skull 146 ♀ Peromyscus m. 22.42 gms. 160-71-21.5-17 Jan. 2, 1934 No. 142 - 146 Taken in tule 2 mi. above Laguna Dam, Imperial Co., Calif. 147 ♀ Sigmodon no embryo 100.20 gms. 245-97-31-20. Jan. 3, 1934 148 ♂ Sigmodon 110.00 gms. 251-114-31.5-19 Jan. 3, 1934 ? Both taken in tule 2 mi above Laguna Dam, Imperial Co., Calif. no embryo 149 ♀ Sigmodon 64.80 gms. 220-91-31-19 Jan. 3, 1934 In cane growth in irrigation ditch, 7mi NE Fort Yuma near Bard Imperial Co., Calif. Trapped during day. skull 150 ♂ Sigmodon - - Jan. 3, 1934. Taken in cane 2 mi. above Laguna Dam, Imperial Co., Calif. taken dry irrigator's farm tracts around tof and vicinity fat 151 Lagomys sylvia 23.50 gms. Testes 2.1x1.0 Jan. 4, 1934 6 mi. west Fort Yuma, Imperial Co., Calif. very fat fat 152 Aukipara f. flaviceps 6.20 q. ovary 3.9x1.9 Jan. 4, 1934 4.mi.NW of Fort Yuma, Imperial Co., Calif. fat 153 ♀ad Lanius l. excubitorides 47.65gms., testes 4.0x2.2. Jan. 5, 1934 Arizona 7 mi. south of Yuma, Yuma Co., Calif. fat. 154 ♀ad Agelaeus p. sonorensis 40.21 gms. ovary injured Jan. 6, 1934 Fort 9 mi. NE of Yuma, Imperial Co., Calif. no fat. 155 ♀ad Agelaeus p. sonorensis 43.61 gms. ovary 7.0x2.8. Jan. 6, 1934 9mi. NE of Fort Yuma, Imperial Co., Calif. no fat. no embryo 156 ♀ Perognathus. 22.37gms. 209-121-26-8. Jan. 7, 1934 no embryo 157 ♀ Perognathus 18.07 185-101-24-8. Jan. 7, 1934 158 ♂ Perognathus 18.48 199-111-25-7 Jan. 7, 1934

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Cricheon, M.M. 1934 yuma Fort Yuma Castle Dome. 4 156-158 taken 6 mi. N.of Fort Yuma, Imperial Co., Calif. √ 159 ad ♀ Lanius l. excubitorides, 43.61 mod. fat. Jan.7, 1934 5.5 mi. N.of Fort Yuma, Imperial Co., Calif ovary injured skeleton √ 160 ♀ Heliodiys br-cousi. - fat. Jan.7,1934 4 mi. N.of Fort Yuma, in mesquite bush, long fence on road. √ 161 Fad. Molothus a. obscurus 27.61 g., ovar 4.1 x3.0, no fat. Jan.8, 1934 √ 162 Fad " " " 28.15g,, ovar 6.1x2.8, no fat. Jan 8, 1934 √ 163 Fad " " " 30.82 g., ovar 6.0 x 3.5,little fat Jan.8,1934 √ 164 ♂ ad " " " 36.79g., testes 1.2x1.1, little fat, Jan.8,1934 √ 165 Fad : " " 38.19go, testes 1.6 x 1.0, no fat. Jan.8,1934 √ 166 Fad " " " 34.26gq. tisks shot, no fat. Jan.8,1939 √ 167 Fad " " " 34, 16 qws,,tutis 1.5x1.4, no fat. Jan.8, 1934 √ 168 ♂ ad " " " 33.50gmo, testes 1.6 x1.5 no fat. Jan.8,1934 √ 169 Fad " " 31.13 gmo. ovary shot. no fat. Jan8,1934 161-169 - 5 mi. N.of Fort Yuma, Imperial Co., Calif. √ 170 ♂ ad. Lanius l. excubiterides 42.41 anno. testes 2.5 x2.0. little fat. Jan.8, 7 mi. N.of Fort Yuma, Imperial Co., Calif. 171 ♂ Perognathus baileyi 31.52g. 226-130-28-10. Jan.10, 1934 172 ♂ Peromyscus e. 16.04g. 178-99-21-18. Jan.10, 1934 173 ♀ Dipodomys m. 32.49g 240-139-36-8 Jan. 10,1934 174 ♂ Dipodomp m. 34.12g. 239-141-37-8 Jan. 10, 1934 no. 171-174. Rest base of Castle Dome, 1400 ft., Yuma Co., Arizona 175 ♀ Reutoma 146.98g. 323-151-32-29. Jan.11, 1934 no lobbyas. 176 ♀ Peromgacus e. 2106 g. 227,5-120-21-20 Jan.11, 1934 177 ♂ Persongeus e. 19.01g. 189-106-20-20 Jan.11, 1934 178♀ Dipelomys 32.93g. 235-141-36-15 Jan.11, 1934 no. 175-178. West base of Castle Dome, 1400 ft., Yuma Co., Arizona

Erickson 1934 Melton Tinajas Altas 5 179 ♀ Dipodomys 254-154-36-7. 53.40 g. 280 ft. Jan. 13 1934 S.E. edge of Melton, Yuma Co., Arizona. 180 ♂ Loxidea toxus 4,289.54g. 573-71-94 x 48 , Jan. 13,1934 1¼ N.of Tinajas Altas, 1150 ft., Yuma Co., Est Arizona, taken by J.S. King and Paul Williams, trappers. 1150ft. No. 181- Tinajas Altas, Yuma Co., Arizona 181 ♀ Peromyscus c. 171-116-20-9.5. 9.95g. 1300 ft. Jan. 13 182 ♂ Peromyscus e. 175-96-20-19. 17.63 g. 1150 ft. Jan. 13 183♂ Peromyscus e. 184-101-21-21. 17.50 g. 1150 ft. Jan. 13 184 ♂ Peromyscus e. 186-105-21-20. 19.09g. no embryos 1200 ft. Jan.13. 185 ♀ Peromyscus e. 189-103-20-18. 17.38g. 1230ft. Jan. 13. no embryos 186 ♀ Peromyscus e. 201-111-21-19. 16.49g. 1175 ft. Jan. 13. 187 Jan. 14, 1934 187 ♂ Peromyscus e. 184-112-19-20. 10.78g. 1330ft. Jan. 14. no embryos 188 ♀ Peromyscus c. 188-113-19.5-21. 11.60g. 1310 ft. Jan. 14. 189 ♂ Peromyscus c. 179-109-21-20. 10.01g. 1360 ft. Jan. 14. 190 ♂ Peromyscus c. 183-111-19-20. 11.70g. 1640ft. Jan. 14. no embryos 191 ♀ Peromyscus c. 180-113-20-19. 10.09g. 1660 ft. Jan. 14. 192 ♂ Peromyscus c. 191-107-20-20. 12.18g. 1300 ft. Jan. 14. 193 ♀ Neotoma L. 268-132-29-31. 78.12g. 1640 ft. Jan. 14 194 ♂ Ammospermophilus L. 233-73-37-13 1150 ft. Jan.13. 195 ♂ Ammospermophilus L. 233-80-38-12 " 1150ft Jan.13. √196 ♀? Hummingbird. little fat 2.8g. 1150ft. Jan. 15. √197 ♂ Peliopetla mod. fat, testes 1.0x1.0 5.82 g. 1150 ft. Jan. 15. √198♂ Myiarchus mod. fat, testes 2.0x1.0 28.00g. 1150ft. Jan. 15. 199 ♂ Peromyscus e. 192-111-20-20. 17.23g. 1350 ft. Jan. 16. √ 200 ♂ Sayornis saya fat. testes 4.1x1.4 20.05 g. 1150ft. Jan. 16.

Erickson 1934 6 Tinojas Altas 201 ♂ Ammospermophilus l. no embryos. 220-73-40-8, 90.09g. 1150ft. Jan. 16. 202 ♀ Ammospermophilus l. 214-68-39-7 99.76g. 1150ft. Jan. 16. no embryos 203 ♂ Neotoma lepida 293-147-30-31. 87.88g. 1150ft. Jan. 17 204 ♂ Dipodomys 227-137-37-12.6. 31.20g. 1150ft. Jan. 17. 205 ♀ Peromyscus eremicus. 194-114-21-20. 17.68g. 1150ft. Jan. 17. no embryos. 206 ♀ Peromyscus e. 201-115-215-20. 20.49g. 1150ft. Jan. 17 207 ♂ Peromyscus e. 182-104-21-21. 17.47g. 1150ft. Jan. 17. 208 ♂ Peromyscus e. 184-101-21-21. 16.44g. 1150ft. Jan. 17. 209 ♂ Myiarchus little fat. tute 2.3x2.0. 28.23g. 1150 ft. Jan. 17 skull 210 ♀ Peromyscus e. 182-102-21-20. 18.20g. 1150ft. Jan. 17 no embryos. 211 ♀ Peromyscus e. 180-106-21-20. 16.30g. 1150ft. Jan. 18 no embryos. 212 ♂ Peromyscus e 205-113-21-20. 19.49g. 1150ft. Jan. 18. skull 213 ♀ Peromyscus e. 180-98-21-21. 16.50g. 1150ft. Jan. 18. 214 Mt. sheep?? leg bone, picked up at base of mountains, some of vertebrae and ribs near by. Jan. 18. 215 Mt. sheep?? astragulus, picked up ¼ mi. east of specimen 214, at base of mountain another slide. leg bones near. Jan. 18. 216 Mt. sheep? hoof. picked up ½ mi SE. of Camp-tank, in small gully 100 ft. from base of mountains. 217 Palo verde branch eaten by wood rat. Jan. 18. Tule Tanks, 1250ft., Yuma Co., Ariz Jan. 19, 1934. 218♂ Peromyscus e. 172-100-19-21. 11.86g. 1350ft, 219 ♂ Peromyscus e. 187-115-20-20. 12.61g. 1350ft. no embryos. 220 ♀ Peromyscus e. 181-108-20-20. 11.90g. 1350ft. 221 ♂ Peromyscus 184-115-20-20, 11.80g. 1326ft.

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Erickson 1934 Tule Tank 7 Jan. 19, 1934 222 ♂ Beromyscus c. 181-107-20-21. no embryo. 12.40 g. 1325 ft. 223 ♀ Beromyscus c. 179-111-21-20. 11.25g. 1325ft. 224 ♂ Beromyscus c. 176-103-20-20. 11.65 g. 1300 ft. 225 ♀ Neotoma lepida ad. 286-138-30-33. 92.30g. 1300ft. √ 226 ♂ Auriparus fat. Testis 1.1x1.1. 6.40 g. 1250 ft. 227 ♂ Beromyscus e. 201-110-21-21. 20.42 g. 1250ft. 228 ♂ Beromyscus l. 209-123-21-21. 19.50g. 1250 ft. 229 ♀ Beromyscus c 177-106-20-21 10.20 g. 1300ft. Jan. 20, 1934 230 ♂ Beromyscus c. 179-109-20-21.5. 10.81g. 1350 ft. 231 ♂ Beromyscus e. 178-99-21-22. 19.14 g. 1250 ft. 232 ♀ Neotoma lepida 260-131-30-32. 69.10g. 1300 ft. √ 233 ♀ ad. Amphispiza n. nevadensis, l. fat, ovary 3.2x2.0. 18.83 g. 1250ft. √ 234 ♀ Allomyiarchus mod. fat., ovary 6.8x2.9. 26.70g. 1250ft. Jan. 21, 1934 no embryos 235 ♀ Neotoma lepida. 272-133-29-31. 75.17 g. 1275 ft. 236 ♀ Beromyscus c. 175-103-20-20. 11.32 g. 1275 ft. 237 ♂ Beromyscus c. 182-111-21-21. 12.50g. 1275ft. 238 ♀ Beromyscus c. 172-103-20-20. 9.93 g. 1300 ft. O milobaquito, Pima Co., Ariz. Jan. 24, 1934 skeleton √ 239 ♂ Oreocryptes montana mod. fat. Testis 2.1x1.0. 42.51g. skeleton √ 240 ♀ Centurus u. euphyzialis. no fat. ovary 7.8 x 3.9. 61.96 g. skeleton √ 241 ♂ Centurus u. euphyzialis no fat testis 3.3x2.0 72.50g.

Erickson 1934 Q. mlobquito 8 Jan. 25. stomach empty. 10.79-345-190-121. 70 10.3g. 242♂ Colaptes mearnei Trapped by Indians of Jose Juan's family. 6 embryos, 3 in each horn; 11 mm. long. 243♀ Ammospermophilus k. 236-87--41-13 120.53g. skeleton √244♂ Centurus u. europygalis no fat testis 2.1 x 1.2. 73.59g. Jan. 26. left testis 6.1 x 1.2 crescent. √245♂ Colaptes c. mearnei. mod. fat, st. testis 3.5 x 1.8. 109.63g. skeleton √246♀ Creocopsius montanus. mod. fat ovary 6.0 x 2.9. 40.00g. skeleton √247♂ Centurus u. europygalis no fat. testis 3.2 x 1.8 67.16g. Jan. 27. √248♀ Lanius mod. fat; ovary 8.x 4.6. 43.51g. √249♂ Centurus u. europygalis no fat. testis 2.2 x 2.2. 68.41g. √250♀ Centurus u. europygalis no fat. ovary shot 66.00g. √251♂ Lophortyx g. gambeli nofat. ovarx 10.0 x 5.8 148.06g. √252♀ad. Mimius polyglottos no fat ovary 6.8 x 4.0 50.80g. skeleton √253♀ ad. Creocopsius montanus, fat. 44.52g. skeleton √254♂ Centurus u. europygalis no fat. testis 3.1 x 2.0 70.00 1385ft, Blakes Well Pima Co., Ariz. Jan. 29. √255♂ Catherpes m. conspersus mod. fat, testis 1.2 x 1.0. 11.30g. Jan.29 √256♀ Catherpes m. conspersus little fat, ovary 3.8 x 3.0. 8.75g. Jan.29 257 Lizard 1.1g. Jan.29. √258♂ Colaptes c. mearnei little fat, testis 4.8 x 1.9. 103.42g. Jan.29. skeleton √259♀ Heleodytes b. couseli little fat, ovary 6.0 x 23. 34.39g. Jan.29.

Erickson 1934 9 Bates Well Jan. 30 260 ♀ Cathartes m. consernus. mod. fat, ovary 4.0 x 2.9, 9.20g. - 261 ♂ Oreoscptes montanus no fat, ovary 5.2 x 3.4. 41.39g. 262 ♂ Neotoma albigula 345-157-34-31. 189.88g. 263 ♂ Peromyscus 194-107-21-20. 18.31g. 264 ♂ Peromyscus 204-109-21-20. 19.29g. 265 ♂ Peromyscus 203-110-21-21. 18.52g. 266 ♀ Dipodomys 237-140-36-15. 34.20g. Jan. 31 267 ♀ Colaptes c. mearnii. little fat, ovary 8.0 x 4.8. 110.91g. no embryos 268 ♂ Thomomys 187-60-27-5. 88.71g. no embryos 269 ♀ Thomomys 199-68-29-5. 90.00g. 270 ♂ Thomomys 226-71-30-7. 131.80g. no embryos 271 ♀ Thomomys 200-64-28-6. 95.36g. 272 ♂ Neotoma albigula 341-157-35-31. 164.29g. no embryos 273 ♀ Thomomys 208-67-37.5-5. 95.79g. no embryos 274 ♀ Thomomys 182-59-37-6. 70.41g. 275 ♀ Thomomys 206-66-30-6. 105.64 g. Feb. 1, 1934 276 ♂ Thomomys 204-61-30-6. 120.98g, 277 ♂ Cathartes m. conspernus mod. fat. Testes 2.0 x 1.4. 9.62 g. 278 ♀ Cathartes m. conspernus little fat ovary 6.0 x 4.0. 9.11 g. ✓ 279 ♂ Cathartes m. conspernus mod. fat. shot. 9.61g. ✓ 280 ♂ Cathartes m. conspernus. little fat shot. 10.00 g. ✓ 281 ♀ Colaptes c. mearnii. little fat. ovary 8.0 x5.8 98.62g. Feb. 2, 1934 ✓ 282 ♂ Sayornis saya mod. fat. Teste 3.2 x 1.0. 20.55g. ✓ 283 ♀? Pipilo f. meadlensis mod. fat. 45.15g.

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Erickson 1934 Bates Well 10 Feb. 2, 1934 √284 ♂ Lanius l. excubitorides little fat, tutes 3.0x1.6. 46.50g. 1385 ft. freshm 30 285 ♂ Bat 67-30-6-12. 2.91g. 1385 ft. skeleton √286 ♀ Centurus u. utopygiolis. no fat. 57.15g. 1385 ft. Feb. 3, 1934 287 ♂ Dipodomys 227-130-36-14. 31.70g. 1385ft 288 ♂ Dipodomys 253-154-39-14 39.13g. 1385 ft. 9 mi. east of Bates Well, 1100 ft., Pima Co., Ariz. Feb. 4/1934 289 ♂ Perognathus intermedius 153-89-20.5-7. 8.68g. 1200ft. 290 ♂ Perognathus intermedius 173-105-22-8. 12.21g. 1200ft. 291 ♂ Perognathus intermedius 157-89-21-7 9.49g. 1150 ft. 292 ♂ Nestoma 173-37-29-32. 73.71g. 1150 ft. 293 ♂ Nestoma 302-153-29-32. 104.70g. 1200 ft. 294 ♂ Nestoma 280-135-30-32. 86.09g. 1200 ft. √295 ♂ Myiarchus little fat, tute 2.1x1.1. 27.65g. 1200 ft. 296 ♂ Dipodomys 254-156-38-13. 40.02g. 1100 ft 297 ♀ Dipodomys 244-149-37-13. 36.48g. 1100 ft. 298 ♂ Peromyscus 191-107-20-21. 17.29g. 1150ft. 299 ♂ Peromyscus 215-123-21-21 21.00g. 1150 ft. 300 ♀ Dipodomys deserti 352-208-55-20. 104.68g. 1100 ft, 301 ♀ Peromyscus 179-104-20-21. 17.57g. 1150 ft. 302 ♂ Peromyscus 195-112-21-21. 17.71g. 1150ft. skull 303 ♀ Peromyscus 201-110-21-20. 21.50g. 1150 ft. skull 304 ♀ Peromyscus 179-102-21-22. 16.69g. 1150ft. skull 305 ♂ Peromyscus 188-99-21-21. 20.01g. 1150 ft. skull 306 ♀ Dipodomys 226-130-37-8 38.80g. 1100 ft

Erickson 1934. 11 9 mi. east of Papago Well Feb. 5, 1934 307 ♀ Neotoma albigula 319-152-34-34. 127.65g. 1200 ft. 308 ♂ Peromyscus 179-104-21-21. 15.74g. 1200 ft. 309 ♀ Peromyscus 184-103-20-20. 16.55g. 1200 ft. 310 ♂ Peromyscus 195-116-21-21. 16.21g. 1200 ft. 311 ♂ Peromyscus 179-101-21-21. 14.57g. 1200 ft skull 312 ♂ Peromyscus 195-105-21-21. - 1200 ft. Gila Bend, 728 ft., Maricopa Co., Ariz Feb. 7, 1934 313-320 Taken in alfalfa field 11 miles west of Gila Bend on Yuma highway nursing young 313 ♀ Thomomys. 230-72-38-7. 160.42g. 728 ft. 314 ♀ Thomomys 214-65-30-7. 131.69g, 728 ft. 315 ♂ Thomomys 204♂-44♂-35-8. 155.33g. 728 ft. 316 ♀ Thomomys 208-75-28-6. 98.39g. 728 ft. v 317 ♀ Euplagius cyanocephalus fat, ovarx 8.0 x 3.1. 63.28g. 728 ft. v 318 ♀ " " mod. fat, ovary 8.6 x 4.0; 70.63g. 728 ft. v 319 ♀ " " mod. fat, ovary 8.1 x 4.5 63.00g. 728 ft. v 320 ♀ " " fat. ovary 5.0x3.0 61.88g. 728 ft. Phoenix, 1108ft., Maricopa Co., Ariz. Feb. 9, 1934. no embryos 321 ♀ Thomomys 253-77-34-8. 217.40g. 1108 ft. 322 ♂ Thomomys 262-93-35-8 244.80g. 1108 ft. 323 ♂ Thomomys 287-92-38-9. 268.61g. 1108 ft. 324 ♂ Thomomys 276-86-37-9. 257.72g. 1108 ft. 325 ♀ Thomomys 258-82-34-8. 178.65g. 1108 ft.

11 [illegible] 26/04/1975 31/10/81 19.2.21 18-12-191-211 30/03/1 16.21 18-02-141-211 52, 02/1 12.41 18-12-111-211 79/00/1 17.81 18-12-191-211 33/02/1 16.15 18-12-201-211 [illegible] 24/03/81 27.11 18-02-24-812 29/03/81 16.05/1 18-02-24-812 04/03/81 18.27/1 18-02-24-812 24/09/81 16.99 18-02-25-802 [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] [illegible] 20/10/81 36.95 18-02-27-822 34/01 38.302 18-02-28-802 36/11 34.432 18-02-28-812 39/04/81 37.562 18-02-28-812 39/04/81 37.93/1 18-02-28-822

Erickson 1934 Phoenix New River 12 326 ♀ Thomomys no embryos 231-70-32-8. 156.99g. 1108 ft. 327 ♀ Thomomys 240-74-33-8. 183.42g. 1108 ft. 328 ♀ Thomomys 244-78-33-8. 180.86g. 1108 ft. 329 ♀ Thomomys 235-75-32-9. 144.10g. 1108 ft. 330 ♂ Thomomys 243-85-34-8. 147.50g. 1108 ft. New River Valley, 30 mi. N. of Phoenix, 1650 ft, Maricopa Co., Ariz. Feb. 11, 1934 331 ♂ Perognathus intermedius 165-67-22-9. 15.13g. 1675 ft. 332 ♀ Perognathus basileyi 213-119-25-11. 27.51g. 1650 ft. 3 embryos, 6 mm. 2 in one lobe of uterine 333 ♀ Peromyscus eremicus 178-100-21-20. 20.59g. 1675 ft. 4 embryos, 5 mm. 3 in one lobe of uteri 334 ♀ Peromyscus eremicus 174-102-20-22. 27.40g. 1675 ft. 335 ♂ Peromyscus eremicus 178-95-20-21. 20.01g. 1675 ft. no embryos 336 ♀ hectoma lepida 282-138-31-33. 92.32 g. 1675 ft. 337 ♂ Dipodomys merriami 248-141-37-15. 43.10g. 1650 ft. 338 ♂ Dipodomys merriami 244-146-38-15. 41.95g. 1650 ft. 339 ♂ Dipodomys merriami 262-164-39-16. 43.38g. 1650 ft. 340 ♂ Dipodomys merriami 246-144-37-15. 34.91g. 1650 ft. no embryos 341 ♀ Dipodomys merriami 256-151-38-15. 40.36g. 1650 ft. no embryos 342 ♀ Dipodomys merriami 235-138-35-15. 37.72g. 1650 ft. 343 ♀ Dipodomys merriami 242-144-36-14. 35.40g. 1650 ft. 344 ♀ Dipodomys merriami 232-137-34-14 34.42g. 1650 ft. Feb. 12, 1934 345 ♂ Peromyscus eremicus 189-98-21-22. 23.60g. 1675 ft. no embryos 346 ♀ Perognathus intermedius 159-93-21-7. 11.28 g. 1675 ft. 347 ♂ Perognathus intermedius 172-99-21-7. 14.58g. 1675 ft. 348 ♂ Perognathus intermedius 158-91-21-8. 13.65g. 1675 ft.

[illegible] [illegible] 125.081 3-26-45-146 [illegible] 9 255 [illegible] 126.081 3-27-45-146 [illegible] 9 255 [illegible] 127.081 3-27-22-222 [illegible] 9 255 [illegible] 128.081 3-27-45-222 [illegible] 9 255 [illegible] 129.081 3-26-22-222 [illegible] 9 255 [illegible] [illegible] 130.081 3-24-42-221 [illegible] [illegible] 10 266 [illegible] 131.081 3-25-111-212 [illegible] [illegible] 10 266 [illegible] 132.081 3-24-44-471 [illegible] [illegible] 9 256 [illegible] 133.081 3-22-241-711 [illegible] [illegible] 9 256 [illegible] 134.081 3-21-241-711 [illegible] [illegible] 9 256 [illegible] 135.081 3-22-22-222 [illegible] [illegible] 9 256 [illegible] 136.081 3-17-141-212 [illegible] [illegible] 9 266 [illegible] 137.081 3-16-251-212 [illegible] [illegible] 9 266 [illegible] 138.081 3-17-241-222 [illegible] [illegible] 9 266 [illegible] 139.081 3-17-241-412 [illegible] [illegible] 9 266 [illegible] 140.081 3-15-131-222 [illegible] [illegible] 9 266 [illegible] 141.081 3-17-221-222 [illegible] [illegible] 9 266 [illegible] 142.081 3-15-221-222 [illegible] [illegible] 9 266 [illegible] [illegible] 143.081 3-17-45-221 [illegible] [illegible] 9 266 [illegible] 144.081 3-16-25-221 [illegible] [illegible] 9 266 [illegible] 145.081 3-15-22-221 [illegible] [illegible] 9 266 [illegible] 146.081 3-15-1-221 [illegible] [illegible] 9 266

Erickson 1934 New River 13 1 349 ♂ Berognathus intermedius 152-81+-22-7. 10.30g. 1650ft. 350 ♂ Berognathus baileyi 223-126-27-10. 29.24g. 1650ft. no embryo 351 ♀ Berognathus 208-118-26-10. 25.20g. 1650ft. 352 ♂ Dipodomys merriami 259-156-39-15. 43.35g. 1650ft. no embryo 353 ♀ Dipodomys merriami 234-132-38-15. 40.20g. 1650ft. no embryo 354♀Dipodomyx merriami 247-145-37-14. 40.30g. 1650ft. 355 ♂ Dipodomys merriami 234-140-35-12. 34.27g. 1650ft. Feb. 13, 1934 356 ♂ Berognathus intermedius 157-90-21-7. 11.58g. 1675ft. 357 ♂ Berognathus intermedius 170-95-22-8. 13.32g. 1850ft. no embryo 358 ♀ Peromyscus eremicus 183-95-20-20. 17.65g. 1700ft. no embryo 359 ♂ Beromyscus 184-101-20-21. 18.00g. 1700ft. 360 ♂ Beromyscus 180-97-20-20. 16.38g. 1700ft 361 ♂ Dipodomys merriami 244-141-36.5-15. 45.80g. 1650ft. shell 362 ♂ Dipodomys merriami 260-157-38-14. 41.80g. 1650ft. shell 363 ♂ Dipodomys merriami 235-132-36-15. 45.90g. 1650ft. shell 364 ♂ Dipodomyx merriami 243-145-37-14. 39.75g. 1650ft. shell 365 ♂ Dipodomys merriami 259-157-38-15. 43.82g. 1650ft. shell 366 ♂ Dipodomyx merriami 254-152-37-19.5. 40.53g. 1650ft. shell 367 ♀ Dipodomys merriami 249-151-36-15. 34.17g. 1650ft. Feb. 15, 1934. Harqualala Mts., 3000 ft., Yuma Co., Ariz. 368 ♂ Beromyscus eremicus 184-104-21-22. 17.55g. 3025ft. 369 ♂ Peromyscus " 190-102-21-22. 19.09g. 3025ft. no embryo 370 ♀ Beromyscus " 199-105-22-23. 21.10g. 3200ft. 371 ♂ Beromyscus " 195-112-22-22. 18.12g. 3200ft. 2 embryos, 10 mm., 1 intact horn. 372 ♀ Beromyscus " 185-95-20-22 18.50g. 3200ft.

Erickson 1934 Harquahala Mts 10 mi. W. of Wickensburg. 14 373 ♂ Deromycus eremius 181-168-19-23. 13.96 g. 3400 ft. ✓ 374 ♂ Bubo v. pallidescens. no fat, testes 11 x 7.3. 888.10g. Picked up on highway 10 mi. west of Wickensburg, Maricopa on Feb. 14, 1934 Co., Ariz.; rt wing broken above elbow, otherwise undamaged. 375 ♂ Dipodomys merriami 249-152-38-15 35.20g. 3300 ft. ✓ 376 ♀ Amphispiza t. deserticola little fat. 3000 ft Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 16, 1934 ad. ✓ 377 ♂ Otocoris alpestris fat, testes 2.1 x 1.9. 33.9g. 1765 ft. ad. ✓ 378 ♀ Otocoris alpestris fat, testes 2.1 x 1.2. 30.49g. 1765 ft. ✓ 379 ♀ad. Otocoris alpestris very fat, testes 2.0 x 1.2. 27.30g. 1765 ft. ✓ 380 ♀ad. Otocoris alpestris fat, testes 1.9 x 1.2. 30.20g. 1765 ft. ✓ 381 ♀ad. Otocoris alpestris very fat, ovary 4.4 x 3.2. 31.29g. 1765 ft. ✓ 382 ♀ad. Lagornis saga fat, testes 5.0 x 2.5. 22.61g 1765 ft. ✓ 383 ♀ad. Lanius l. excubitorides. fat. 47.42 g. 1765 ft. ✓ 384 ♀ad. Spizella p. arizonae little fat, testes 1.2 x 1.0. 12.22g. 1765 ft. ✓ 385 ♀ad. Anthus s. rub-cacmo little fat, testes 1.6 x 1.0. 19.50g. 1765 ft. Feb. 17, 1934 ✓ 386 ♀ Otocoris alpestris mod. fat, ovary 5.7 x 2.2. 25.62 g. 1766 ft. ✓ 387 ♂ Otocoris alpestris fat, testes 1.8 x 1.2 28.51g. 1765ft Blomosa Mts, 10 mi. east of Quartzsite, Yuma Co., Ariz. Feb. 18, 1934 388 ♂ Spilogale 344-22-145-43-31. 255.6 g Ehrenburg, 288 ft., Yuma Co., Ariz. Feb. 20, 1934 389 ♂ Thomomys 220-79-30-7 94.42g. 288 ft.

Eriksen 1934 15 Chrenburg, 390 ♂ Thomomys b. chrysonotus 213-74-30-6.5. 94, 22g. 288 ft. Feb. 21, 1934 no embryos. 391 ♀ Thomomys b. chrysonotus 198-66-27-6. 73, 90g. 288 ft skeleton. 392 ♀ Melospiza m. saltonis. fat., ovary 5.5 x 3.0. - 288 ft; 3 mi. east of Blythe, Riverside Co., Calif. Parker, 440 ft., Yuma Co., Ariz. Feb. 22, 1934 2 mi. south of Parker, 350 ft., in saltgrass pastures. nursing young. 5 393 ♀ Thomomys 225-72-32-8. 171. 20g. 350 ft. 5 embryos, 13 mm. 5 3 in left horn, 2 lost. 394 ♀ Thomomys 219-75-30-7. 119. 37g. 350 ft. no embryos. 395 ♀ Thomomys 183-67-29-6. 63. 71g. 350 ft. 5 embryos, 34.8 mm.; 3 in left horn. 396 ♀ Thomomys alcoholic 220-76-33-7. 170.20g. 350 ft. 397 ♂ embryo of 396. no embryos 5 398 ♀ Thomomys 207-66-30-7. 126. 90g. 350 ft. no embryos 399 ♀ Thomomys 207-74-31-6.5. 105. 05g. 350 ft. Feb. 23, 1934. no embryos. 400 ♀ Thomomys 213-71-31-7. 118. 12 g. 350 ft. skull 401 ♂ Thomomys 201-67-30-6. 86. 67g. 350 ft. Feb. 24, 1934. no embryos 402 ♀ Thomomys 215-72-30-7. 125. 70g. 350 ft. 403 ♂ Thomomys 235-84-32-7. 160. 00 g. 360 ft. 404 ♂ Thomomys 242-74-33-7. 173. 10g, 350 ft. 405 ♂ Thomomys 238-78-32-8. 178. 00g. 350 ft. 406 ♂ Thomomys 226-71-30-6. 159. 30g. 350 ft. 4 embryos, 19 mm. 2 in each horn. 407 ♀ Thomomys 211-71-30-6.5. 128. 52 g. 350 ft. no embryos 408 ♀ Thomomys 217-73-30-6.5. 130. 31g. 350 ft. no embryos. 409 ♀ Thomomys 217-75-30-7 144. 40 g. 350 ft.

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Crickson 1934 Parker 16 410 ♀ Thomomys 4 embryos, 7 mm. 2 in each horn. 206-66-30-7.5. 130.09g. 350 ft. recently given birth to 5 young, 3 in left horn 411 ♀ Thomomys 218-84-30-6. 124.29g. 350 ft. 4 embryos, 14 mm. 3 in left horn, 1 in right. 412♀ Thomomys 217-75-31-7. 142.03g. 350 ft. 4 embryos, 8 mm. 2 in each horn. 413♂ Thomomys 222-78-31-7. 137.60g. 350 ft. recently given birth to 5 young, 3 in right horn. 414♀ Thomomys 212-74-29-5. 115.68g. 360 ft. no embryos. 415♀ Neotoma albigula. 348-162-34-33. 186.87g. 350 ft. Number 415 taken in dry tule ditch 5 mi. south of Parker. Feb. 25, 1934. Trapped by L. Kellogg. Colorado River, San Bernardino Co., opposite Parker, Yuma Co., Calif., Ariz. 416 ♂ Sigmodon 246-109-33-22. 99.18g. 417 ♂ Sigmodon 248-113-32-23. 91.85g. 418 ♂ Sigmodon 243-109-32-22. 85.90g. Feb. 27, 1934 10 mi. east of Quartzite, Yuma Co., Ariz. 419 ♂ Perognathus intermedius 171-112-22-7. 11.19g. 420 ♂ Perognathus intermedius 167-99-21-7.5. 12.65g. no embryo 421 ♀ Peromyscus eremicus 184-110-19-21. 13.42g. 422♂ Peromyscus eremicus 175-105-19.5-23. 13.40g. 423 ♀ Neotoma lepida 277-134-29-34 83.60g. 424♀ Neotoma lepida 263-130-28-33. 72.50g. 425♀ Catherpes mexicanus conspersus. little fat, ovary 5.0x4.1. 9.30g. Feb. 28, 1934 426 ♂ Peromyscus crinitus 171-101-20-21. 12.70g. no embryo 427 ♀ Peromyscus eremicus 174-100-21-21. 16.12g. 428 ♂ Peromyscus crinitus 182-109-20-20. 11.80g. 429 ♂ Dipodomys merriami. 257-155-37-13. 38.91g.

Erickson Ehrenburg. 17 March 1, 1934 recently given birth to 4 young, 2 in each den. 430 ♀ Thomomys b. chrysonotus 199-68-29-5. 88.75g. north of no. 430 taken 8 ½ mi. above Ehrenburg on La Paz slough. 431 ♀ Thomomys b. chrysonotus 215-69-28-6. 89.00g. 432 ♂ " " 235-80-31-7. 164.40g. 433 ♂ " " 240-80-32-6.5 205.70g. 434 ♀ " " 207-67-28-6. 112.77g 435 ♀ " " 211-67-29-6. 124.16g. 436 ♀ " " 200-65-30-6. 95.48g. 437 ♀ " " 209-72-29-6. 93.20g. 438 ♂ " " 236-79-31-7. 161.46g. ✓ 439 ♂ Lagomys migrans no fat, tute 2.1x1.1. 17.86g. nos. 431-438 taken 4.3 mi. north of Ehrenburg, no 439 at La Paz slough, 8½ mi. north of Ehrenburg. March 2 440 ♂ Thomomys b. chrysonotus 241-84-32-6 158.60

Erickson, 1933 Palm Springs 1 Dec. 27, spent from 8:15-12:00 observing birds in Palm Canyon. Birds were found only in lower part of canyon before it narrows and where cottonwoods and mesquite were present. Birds seen were Verdin 8:45-9:45,-10:45- 11:45- Verdin 111 Kinglet (ruby-crowned?) 1 II Canyon Wren 1 1 Calif. Towhee 1 Thainopepla 1 Unknown 11 1 Baird's Wren 1 Flicker . 1 3 of unknown flew over canyon to NE in a group. One shrike seen on fence by road near town. 2:00-5:00 spent setting traps 3 mi. north east of Palm Springs; 36 set across old wash and up on to sand at base of mountains. Watched for birds but none seen except shrike about 2 miles from town. Day bright clear in morning; overcast and strong wind blowing in afternoon. Dec. 28, Collected traps from 7:00-7:30; 6 sprung; took one Dipodomys, two Peromyscus; one of these caught by tail still alive, escaped, ran from Ephedra clump where it was caught to another 15 feet away; seen live hiding under bush, but escaped, other taken near a Creosote b

Erickson, 1933 Palm Springs. 2 Dec. 28, (cont.) Brush of location chiefly Burro weed and mesquite, Two birds seen on face of rocks of slope and in shrubs on sand below; one a Flycatcher = ? other [illegible] unidentified in brief time present. 10:30 - 11:30 - Watched birds in vacant lot at south edge of town. Saw Bay Throbe, Plumbeous Iratecatcher, Plainspiffle, and a number of Intermediate Sparrows, and English Sparrows. 3:30 - 4:00 - Set 29 traps, ½ mile east of town, in fine sand. 4:15 - 5:00 - Set 50 traps, south of town in sand along wash. Dec. 29, Collected traps 6:30-7:30. From those set ½ mile east of town, near air field, took 4 Dipodomys . 3♂'s weighed. 37.26, 40.49, 31.91; one ♀-34.80. From traps 1 mi. south of town in sand along wash took 4 Dipodomys 2♂'s weighed 37.51, 33.80, two ♀'s 29.30, 31.98; and 3 Perognathus , these only ones saved. The region one of course sand with a few small rounded rocks; vegetation creosote, mesquite, and Bee sage. One of 3 immature taken in wash, others on slightly higher bank. Spent from 7:15-11:00 climbing to Chino Cañon. Collected Baird Vren, Iratecatcher; saw Hermit Thrushes, Spotted Towhees, Brown Towhees, Flicker, left cañon 2:30. Day, bright, warm. Dec. 30, 7:30 - 9:00 - Climbed to Chino Cañon. Observed and collected birds. Birds seen: Hermit Thrush, Spotted Towhee, Brown Towhee,

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M.M. Erickson 1933 Palm Springs 3 Dec. 30. (cont.) Long Sparrow, Wren-tit, Baird Wren, Rock Wren, Robin, Flicker, Calif. Woodpecker, Junco, Graycatcher, 2 Thrushes, Junco collected. Chino Canyon is an opening slopes of San Jacinto Mountain; at about 2000 ft. a live stream makes possible a heavy growth of cottonwoods and willows and sycamore, with accompanying grape, coarse grass, and a few palms in one clump near the lower margin; this region at the lower end this region of vegetation is dense almost impenetrable and covers an area about 1/4 sq. miles where as the stream comes down the steep rocky sides of the mountain in a narrow gorge vegetation is limited to a narrow strip 5 or less feet wide; here birds were scarce only a Baird Wren seen or heard,

Erickson, 1934 Yuma Fort Yuma. Bird species seen. Jan. 1. White-rumped Shrike Kparrow Hawk Marsh Hawk Red Winged-Blackbird Salton Sink Long Sparrow Flicker, Red-shafted Woodpecker, sp? Vermillion Flycatcher Say Phoebe American Cynet Harris Hawk Killefer Audubon Martler Coot Dipit Road Runner English Sparrow Sambit Sparrow Meadowlark Desert Quail Mourning Dove No. 101. Sparrow, Jan. 2. (additional species) Mountain Bluebird Black Phobe White Pelican Calif. Linnel Western Ruby-crowned Kinglet American Daren Jan. 3. Violet-green(?) Swallowo Turkey Vulture Western Robin Silva Woodpecker Jan. 4. Cowbird, sp? Red-tailed Hawk Jan. 5. Brewer Blackbird.

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Erikson, MM 1933 1934 Yuma Fort Yuma 4 Dec. 31, 1933 - moved to Yuma. 4:30-5:30, set out 104 middle sized traps on mesa 1 mi. east of town. traps set at an average of 10 feet apart from flat 35 ft. elevation sandy mesa to top of small hill made up of small coarse sharp slab rock cemented with sand; traps down from hill sit in sandy draw on one side. plants cresote, burrow weed, scattered grass. Jan. 1, 1934. 6:30-7:00 took off traps, no catches, 1 spring 5 more with bait eaten; Dipodomys sign in evidence tho not abundant. 8:00-7:30 went to Laguna Dam and sloughs above it; one of men at dam - Potholes reported that he had heard hunters speak of rails in region, but didn't hunt or know of them himself. Sloughs shallow 6 in- 2 ft. of water with oozy mud bottom and heavy growth of tules and care through out them; along them a strip from 40ft to 1 mi wide in which scattered willows stand; mostly water killed by flooding at some time. ground dry now with short sparse grass. Beyond this a strip of live willows, arrowweed, and some willo mesquite before bare hills are reached. set three dozen traps in runs of tules well out from shore. Ran traps just before leaving slough no catches. Birds seen on list of birds for region.

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Erickson, M. M. 1934 Yuma First Yuma 5 Jan. 2, 1934. Spent from early morning to middle afternoon at sloughs above Laguna Dam. Ran traps; catch 5 Peromyscus m. sonorensis, and two house mice, one of latter eaten; racoon tracks abundant, drove up along sloughs 5 miles farther, country similar; found same sort of bird tracks in tules and cane, but not positively identified as rails; set 24 large traps in runs. Spent an hour or more on mesquite, creosote and few tree cacti; no birds seen. Ran traps before leaving, no catches. Set additional traps at location of previous day. Similar bird tracks here. Jan. 3, 1934. Set dozen large traps in ditches filled with tules in general region of Bard on Laguna Dam road; tracks of some bird common in runways here. Took up traps in sloughs above Laguna Dam; catch 3 Sigmodons one Peromyscus m. One of Cotton rats much eaten. Racoon tracks common around trap and whole region. Ran traps in ditches by Bard, one Sigmodon taken. Jan. 4. Spent first half of morning on California - California side of river near Yuma, hunting places suitable for Le Conte Thrasher; little suitable country found, no thrashers in these. Ran Traps near Bard, no captures. 6:00 p.m. ran traps again, no captures.

Erickson, M.M. 1984 Yuma First Yuma 6. Jan. 5. Ran traps, two gone; no captures; near location of one of lost traps, small medium sized carnivore tracks common; bird tracks numerous near point where other trap lost. Paint gone from all traps. Rearranged all of traps; hunted for thrashers on Calif. side of Colorado River N and west of Yuma; few birds of any kind seen, high wind blowing. 11:00 - 1:00 spent on Arizon side of river south of Yuma; region under cultivation. Shrikes common on wires; Sparrow Hawks also, esp. near alfalfa fields. 4:00 - 6:00 - Ran trap line; no captures; hunted birds on mesa on Arizona side of river east of Yuma; no bird seen. Jan. 6. 7:30 - 11:30 am spent on lake above Laguna Dam hunting rails. Region before building of dam was under cultivation, except for small part of it; now a shallow lake mostly 1 1/2 - 1 ft. deep; a few place 2 1/2 ft. with relatively little open water, and extensive tule growth throughout; also dead mesquite stubs common. Birds seen. Common Loon, Cormorant, Great Blue Herons, Black-crowned Night Heron, Egret, bitterns, White Pelican, Coot, long sparrow, Red-winged blackbird, Marsh Hens, and one Rail sp.? Trapper who was managing boat reported a second one flew over and into tule. He did not know name of bird, but was familiar with it, at least, to the extent he had seen it while trapping for muskrats. "Always seen them inside the lake not on

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Crickson 1934 Yuma 7 Frost Yuma. outer margins, though thought might feed on shallower regions. Species reported as uncommon in region. 11:30- Calf. side 2:00 spent in dry wash with catclaw, palo verde, and cottonwood trees and on mesa above; there only scattered creosote and ocotillos on rocky wind swept ground. Only birds seen = 2 Plumbous Snatchers. 4:00 - 4:130 - Set 50 traps, middle size, on sandy red region 1/6 miles N and a little east of Yuma. Also set 20 rat traps in tule; water too deep to show tracks, used logs, and stakes for trap locations. Jan. 7, 6:30 - 8:45. Took up traps in sandy wash, catch 3 Perognathus and one Dipodomys; two other traps sprung, bait gone from most. 7:10 - 11:00 spent on lake; looked at traps first, no catches; waited near points where rail was seen day before; none observed or heard. 4:30 - 5:30 set out 50 middle sized traps in sandy stretch of night before; but 1/2 mile farther from road. Strip is narrow not more than 1/8 mi wide, between cultivated silt soils; starts from canal and runs east away from it; vegetation catclaw, palo verde, Atriplex lentiformis; some scattered grass. Dipodomys not saved. wt. 36.14 ?. Jan. 8, 7:00 - took traps up; catch 1 Dipodomys 9 41.73 yrs not saved; two traps sprung; saw Cottontail to-day and yesterday; also Gambel Sparrows. 7:45-10:00- spent in dry wash cutting throu

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Erickson 1934 Yuma Fort Yuma N. Base of Castle Dome 8 mesa; catclaw, mesquite, and palo verde trees most conspicuous plant cover. Thrush located, collected. no. 170. [illegible] Indicatehros, 2, (sp?) only other birds seen in wash 2 mi, walk up draw and back on mesa. Collected 10 - Cowbirds from flock by farm house, nos. 161-169, one & discarded as too badly shot. Jan. 9. Moved to base of Castle Dome; Yuma Co., Calif. elevation 1,400 ft.; set out 98 traps, middle size; 25 on mesa, rest on low rocky hills at base of dome. vegetation creoste, oestellos, giant and cholla cacti, palo verde, and one as yet unidentified broader leafed shrub. Soil rock wind blown, little solid rock at top with small talluses or rocky soil below. Observed Rhinospila, heard and saw Plumbrous Indicatehros, 2, and two unidentified birds, ? sparrows. Enroute to Castle D one stopped near about 25 mi. from Yuma near dry wash; hunted here for 45 min. only birds seen was a single Plumbrous Indicatehros. Vegetation usual catclaw - palo verde. staying in cabin at Bialto Mines = lead; prospecting at present time. Jan. 10. 7:30-9:00 - Ran traps, on first hill of 18, two sprung, one of their near rot hole; 15 on flat and 14 on second hill, none sprung; of 32 on third hill took one Peromyscus., two others sprung, of remaining 10 on flat, took two Dipodmys m. and one Cerognathus barlyi., two others sprung. Law

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Emckson 1934 W. Base of Castle Dome Wilton Tunajus Altas single Rock Kren; flock of Desert Mjarrowss - 5t. Desert two Q nail and one Jay Shoebe; last 3 species all near buildings of mines. Set out 12 traps, middle size 12 on rocky hill of low elevation, 50 ft. rest on steeper parts along wash. Jan. 11, took two Peromyscus from traps on hill; two others sprung; from those on flat took one Dipodomys and one Wood Rat, both of latter X in traps under Goatnut bushes, two others sprung. In afternoon moved to Wilton, Arizona, let out 50 medium sized traps at N E. edge of town. Spent from 5:00 - 6:00 observing birds on N edge of Town. Species noted; Cactus Kren; Jay Shoebe; Brown Towhee, Gambel Sparrow. Jan. 12, Ran traps, one Dipodomys, only specimen taken; two other traps sprung. Traps were set from sandy flat up on to rolling gravel beds; vegetation creoste and usual plants with it. Moved to Tinajas Altas, 1150 ft., Yuma Co., Ariz. Made camp in canyon at base of series of tanks, ground coarse, light colored granite sand and fine some fine soil; plants creosote, and others. Cacelia farinosa catelaw, ironwood and some mesquite, neat water hole: mountain rise steeply to an elevation of a little over 2000 ft., solid rock much weathered steep and cracked; at less steep with shallow draws strewn with rock debris; some plant growth up these points, draws; yucca sp?, Bee sage, Helisporone

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Erickson 1934 Tingas altas 10. californica, burro weed, and others unidentified; specimens saved by Miss Alexander. Some cholla, juniper and a large fishhook cactus. Mesa extending to east flat with shallow washes, dipping slightly toward center; vegetation, creosote, ocotillo, Encelia Burrow weed, giant cactus, most conspicuous plants. Let 52 medium sized traps starting at wash of dry overflow from tanks up slope to 1300 ft. Jan. 13. Took 5 individuals of Beromycus ereenius and one Beromycus crinitus. Reset trap line starting on up slope from highest point reached on 12th; carried line with break of several hundred feet along narrow draw to top ridge of range below highest peaks, vegetation similar most of the way up, but sparser at top. Jan. 14. Took 6 individuals of Beromycus crinitus and a single individual of Nestoma lepida; carried altimeter to check elevations; line started at 1300 ft. traps at 6-15ft. intervals (on surface) up to 1400, then trail to 1620 ft. and traps at 10-20 ft. intervals up to 1750 ft.; top of ridge 1840 ft.; summit of peaks estimated at a little over 2000 ft., highest believed 1960 ft. rise from 1620- to 1750 gradual at point traps were set. Dropping, presumably of yeti Mi. sheep common and trails shown on mountains. No traps set out. Jan. 15, 1934. Spent early morning watching for birds; few seen. Followed rock wren, heard unfamiliar song from perch high on rocks, climbed toward it; as located, it flew

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Erickson 1934 Tinajas Altas . 11. Could not relocate it; linnet heard overhead, but could not be seen. Did not hear song that has been sung given both previous mornings; failed to locate on these mornings; sang a liquid trill. In afternoon took a Myiarchus, a ratcatcher and a Bay Shrike. Let 36 medium sized traps in narrow draw below one of previous days; vegetation same, but less of it; sides of draw steeper, higher, draw-narrow 10-3 ft; also 18 traps on flater slopes above draw. Two bats seen in evening, failed to hit either. Jan. 16. Catch from traps out a single Peromyscus eremicus at lower part of draw. Let 5 rat traps for squirrels on rocks in canyon floor; caught two in two hours time; two others had bait eaten; did not get any others during day. Collected a Bay Shrike. Let out 80 medium sized traps in loop 4 mi. S E of canyon; set at base of hill and back along small wash out on flat, 40 each place; vegetation creosote, Encelia faringens early, burro weed, ocotillo chiefly. Bat seen flying in evening still clear daylight until dusk; failed to hit it. Saw gopher mounds where traps set. Jan. 17. Took 5 Peromyscus eremicus, 1 Neotoma lepida and one Dipodomys. Took a Myiarchus; unidentified woodpecker flew out of some tree. Followed Verdin as it made circle of canyon. Bat seen flying over lower tank at dusk; rock wren on rocks above. Let 42 medium sized traps in small loop stream at

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Crickson 1934 Tinajas Altas 12. mouth of canyon [illegible] base of mountain and back on wash. Jan. 18. Catch 3 Ceromyza cremice near base of mountains; soil coarse gravel with some fines parts to dig in. rather hard; softer sand in run off gullies. Heard Thorned Owl hooting around 9:30 last evening, answered? by wind scream. Have not heard liquid trill song since last mentioned; was this a migrating individual that stopped over? Inatecatchers have been heard nearly everyday, hummingbirds (all of same species as specimen as far as observed, no males seen) and Verdins commonly; Say Phoebe commonly and Myiarchus teneraeiens once or twice beside this specimen taken. Unidentified woodpecker glimpsed twice. No quail seen or heard, although they were said by people in Kelton to be common at the Tank.

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Erickson 1934 Tule Tank 1250 ft. Yuma Co., Ariz. 13. Jan. 18. Moved from Tinajas Altas to Tule Tank during day; road crossed desert plain, shallow wash small lava beds. Country at Tule Tank very similar to that at Tinajas Altas except mountains of tanks are not as high and other ranges are closer. Tank is in canyon that ascends gradually to top of range, running S.E.-N.W. Tank is shallow with sandy approach on lower side; only about a foot of water, pool about 3 by 1 ft. across; about 1600 ft up canyon from mouth; similar canyon mine tank just east; Vegetation the same as at Tinajas Altas. Set 42 medium sized traps on NE facing slope of canyon going up rocky draw and along range above the tank. Set 42 more in wash and plain at mouth of canyon. Bat seen at dusk, feeding over and about ironwood tree; heard squeaking in same region at 9:30 p.m. Jan. 19. Caught seven Dipodomys m. and two Peromyscus eremicus in traps on flat; was all of these in traps in sandy, well good plant cover none on plain proper. Only two Peromyscus saved. In traps on canyon side took one Neotoma leucida and eight Peromyscus crinatus. Set 42 traps on S.W facing ridge going over crest to N.E facing slope of next canyon.

Rock Men put up but not given a field number, Catalogued on return to Museum

Erickson 1934 Tule Tank 14. all medium sized; Ground loose rock from pebble size to huge boulders; plants palo verde, yucca, and two stout stemmed plants one red barked, specimens saved by Miss Alexander, also some burrow weed. Bat seen briefly at dusk around ironwood tree, then flew out toward plain to south; lost. Jan. 20. Caught one Peromyscus lepidus, one Peromyscus eremicus, and four Peromyscus crinitus, one of last caught by nose not saved. Spent morning hunting birds in canyon and out on plain; took a Myiarchus cinerascens, a sparrow, identity not positive, a Salignictes obsolitus and a Polioptila cerulea obscura; the last two badly shot up; not saved. No bird located on the mesa. Heard raven in afternoon on range east of camp (at mouth of canyon with tank), but it stood near for a few minutes only. Put out 30 medium sized traps along SW facing slope of tank canyon, starting at base mouth and ending near tank; most of traps about 25-30 ft above floor of canyon, widely spaced groups at locations where rat sign was found. Found a Shiret dead on rocks as set traps. Jan. 21. From 30 traps set took one Peromyscus lepidus, four Peromyscus eremicus, partly eaten, and two Peromyscus crinitus. One trap in rat run lost.

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Erickson 1934 Tule Tank. 15 Saw a Cottontail, several Myiothera cinerascens, Gambel Sparrows; heard Verdin, Linnet, Gratecatchers and Linnets. On 19th heard same trilled song as at Tingua Altas for 10 min. or less about 3:00 in the afternoon; came from low bushes in wash at mouth of canyon or possibly rocky slope 75 ft beyond; failed to locate singer at this time and song not heard again. Left Tule Tank shortly after noon going by road just west of Buck Mountain and east of Melton hills to Melton. Jan. 22. Moved from Melton to Sela Bend in afternoon. Only birds seen along highway were two thrives at widely separated intervals. Calf. Linnet several times and meadowlarks in alfalfa fields west of Sela Bend. Jan. 23. Went from Sela Bend to Quitobaquito, via Ajo and Bates Well. At Ajo, English Sparrows numerous around buildings with tile roofs. At Bates Well Saw O'rainopepla, three Harris Hawks, Verdin, Western (?) Gratecatcher, Western Robin; and Woodpecker, probably a Sela. Made camp about 1 mi. east of Quitobaquito = home of an Indian named Jose Juan, and about 7 mi. East of Monument 172 on Mexican boundary. Watched for birds from 4:30 till dusk, Linnet and O'rainopepla only ones seen. Bat heard in evening above pan. Lent; coyote calls frequent during night.

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Erickson 1934 Q mitobaquitos 16 Jan. 24. Heard Horned Owl hooting in distance to south of camp at about 6:00 a.m. Spent morning hunting birds in wash east and NE of camp; wash a broad flat stretch with mesquite thickets along main channel and scattered mesquite, salt bush and giant cactus, etc., on slightly higher jets; side of wash fine gravel, higher parts fine soil. Took a pair of Lila Woodpeckers and a Sage Thrasher. other birds seen on list for locality. NE of camp a series of rocky hills rising to 100 ft. about; wash swings around these in wide bend, - several miles east across; north of rocky hills and across wash a series of lava hills; others, in distance to east and south. Donoita River reported by customs men to be about 1 1/2 south of boundary, has continuous flow of water. a spring is located at Quitobaquito and water from it forms a small pond; small field of sprouting wheat here also. Strong wind in afternoon and some clouds. Jan. 25. Owl and coyote heard in distance during night. Hunted for birds in wash and in hills around Quitobaquito. Birds seen on list. Followed up trilling call, heard at times at las call and found it to be given by Ammospermophilus leucurus. set four rat traps for squirrels. the overcast much of day, the first for sometime . Took one squirrel one Lila Woodfpecker Jan. 26. Hunted birds in mesa north and west of camp. Took one Gilded Flicker, one Lila Woodpecker, and one Sage Thrasher. Day, clear, warm.

Erickson 1934 2 Quitobaquito Bates Well, Pima Co., Ariz. 17. Jan. 27. Hunted birds on mesa north of camp; few flickers seen. Took one Sage Thrasher, one Mockingbird, on thrike and three Lila Woodpeckers. Hunted in hills around spring at Quitobaquito and on mesas last half of afternoon; no birds secured. Took one female desert quail in bird trap in wash; saved as specimen. Day warm, cloudy much of time. Jan. 28. Moved to Bates Well, Pima Co., Ariz. Situated on road from Ajo to Quitobaquito, about half way point. Place consists of well with windmill which pumps water into elevated storage tank; latter supplies large concrete trough continually making a constant supply of water available to stock and native animals. Well is situated at east side of small valley 3 - 4 miles across, valley surrounded by hills, those on east lava over granite. A large wash runs lengthwise of valley and is joined by another through Growler's Pass east of the well; valley is typical mesa of region with giant cactus, palo verde, creosote, burro weed, large branching cholla, etc. Along washes large mesquite trees, a form of rabbit brush and several other unidentified plants; specimens saved by Miss Alexander. In afternoon and evening thunder storm occurred; moistened ground to a depth of about two inches.

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Eriksen 1934 Bates Well 18 Jan. 29. Hunted birds during morning, in wash and on lava hills from Well to about two miles east. Followed a pair of Flickers for an hour; collected one, took pair of Canyon Wrens, and one Cactus Wren. Late afternoon took set 11 medium sized and 5 rat traps on lava hill east of Well, and 1 medium and 2 rat traps on mesa just below, 1 rat trap near rat house on flat by well. Lizard found inside globe of lantern, saved. Day cloudy, threatened rain but did not; moderate temperature during day. Jan. 30. Heavy dew in morning. Took up traps, catched 1 rat in trap by house; 1 Dipodomys on mesa and 3 Peromyscus in rocks of lava hills, all in traps highest on hill, about 150 ft. above mesa. Two rat traps near rat house in lava unsprings, another rat trap stolen. Lava rocks have many hollows that have collected and still hold water from rain, making water available to the animals for a brief time. Sula Woodpecker and Cactus Wren only ones observed to use them. Left 3 rat traps on lava hill near places where Antelope Squirrels seen. Hunted birds on hill and in wash rest of morning; took 1 Canyon Wren and a Sage Thrasher. In afternoon made 8 gopher settrips in wash east of Well and into Growler Pass; Gophers active since rain

Erickson 1934 Bates Well, 19 or, at least, their activity more easily detected, but some of mounds evidently were made only a short time before the rain; all new mounds noted were near old workings. Day moderate, but traps left on hill contained one many clouds. Restome no squirrels, traps taken up. Jan. 31. Heavy dew in morning. Hunted birds chiefly lilled Flicker on mesa north of Well and last part of morning on lava hills and wash east of well. Took one Flicker. Looked at gopher settings had 6 catches, and one filled in other untouched; reset one filled in and set two others. Reset one; trapped gopher by evening, other untouched, took up one set for 24 hrs. Feb. 1. Hunted birds on mesa north of Well and on lava hills east. Took one Flicker. 4 Canyon Wrens in valley between hills saw group of luge thrashers and a falcon type hawk high over hills, species uncertain. Took up 2 remaining gopher settings; one trapped gopher; other setting possibly a part of system from which one gopher had already been secured. Night cold, day becoming hot in afternoon. Feb. 2. In morning hunted birds in wash between Well and lava hill, SE of well, took Eide Woodpecker, Canyon Towhee, Jay Ochoche and Thrake; observed Thrashers and Sapsuckers. Late afternoon spent hunting in wash; took bat at dusk. Night cold, day hot.

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Erichson 1934 9 mi. east of Pajago Well, 1100 ft., Gima Co., Ariz. 20. Feb. 3. Took two Dipodomys merriami in traps set in front of same hole at edge of wash. Moved trap to 9 mi. east of Pajago Well, making camp at point of alternate roads to the well; Camp is toward easter- wester-n side of a wide valley, Growler Valley, which is a creosote mesa with little other vegetation except ironwood trees, giant cactus, and along washes. A few low granite hills within a mile or two of camp on west and north; main range of Agua Dulce Mts. 5 miles to west. Set 4 rat and 4 medium sized traps on mesa for Dipodomys deserti. Set 43 medium sized and 12 rat traps on rocky hill north of camp, starting near south base and making circle of highest point going diagonally up slope; rat traps set near rat houses; medium sized irregularly near small holes and runs in rocks. Hill of crumbling granite mostly old weathered, but comparatively a number of new slides. Caught glimpse of bird that possibly was a Thrasher near base of hill in brush. Scared "Billy" Owl from or near a large hole under a creosote bush. Day hot. Feb. 4. Took 4 Dipodomys merriami and one D. deserti in traps on flat; one of former caught by tail released. Took 3 Restoma auripila (1), 7 Lerongecus eremius, and 3 Berognathus intermedius in traps on hill, tail of a 4th Berognathus in one trap. Watched pair of Rock Wrens on east slope; took one Myiarchus.

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Erickson 1934 7 mi. east of Papago Well. Gila Bend, 72 ft, Maricopa Co., Ariz. 21 In afternoon, set 42 medium sized and 12 rat on west slope of same hill as last night and on west and east side of next three peaks in this small ridge; also set 4 medium sized traps on mesa. Saw pair of Ravens north of hill, Feb. 5. Took 1 Meriones algida and 5 Peromyscus eremicus in traps on hill; one Dipodomys merriami on mesa, trap dragged into hole and rat eaten except for head. Pair of Rock Wrens seen on east slope again; saw jack Rabbit; two unidentified bird in distance flying over creoste and perching in it twice; single Gambel Sparrow near camp tame, most of day coming to within a few feet of us. Feb. 6. Had two live Dipodomys merriami in bird trap left open over night; released them. Gambel Sparrow still about camp. Moved from east of Papago Well to Gila Bend via Bates Well and Ajo. Spent first part of afternoon north of town near river, mostly flood lands; little evidence of gophers and all of it old. Went to alfalfa field 11 mi. west of town on Yuma highway and made 7 settings. Gophers seemed to be limited to edges of field where they could escape being flooded out at times of irrigation. Meadowlarks common in fields. Brewer Blackbirds flying high in flocks from southwest to northeast; one small flock stopped briefly on wires along railroad track.

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Erickson 1934 Gila Bend Phoenix 22 Feb. 7. Took up gopher settings, had 4 individuals. Brewer Blackbirds flying high overhead in reverse direction from previous night, none stopped within range. Meadowlarks singing, evidently some paired others in loose flock. Saw group of 7 or more ravens eating a jack rabbit that had been killed by a cat. Shrikes seen in same region; also a Thrasher sang using a fence post near bushes as a song post; failed to hit it when shot at. Hunted birds in afternoon, took 4 Brewer Blackbirds from a flock perched on wires, males in group, but none secured. Heard Ring-necked Pheasants near a large haystack in field. Meadowlarks plentiful, but was unsuccessful in getting near enough for shells available. Feb. 8. Moved from Gila Bend to Phoenix, 1108 ft., Maricopa Co., Ariz. Made 15 settings for gophers, 2 single ones in baseball field at corner of Laurel and Van Buren street, 5 in banks along Van Buren street at west edge of city and 8 others in alfalfa field just outside of city limits on Van Buren. Gophers were again mostly around edges of field, but some in ridges of ditches. Feb. 9. Took up gopher settings; had one from two in baseball field, three from traps along ditch and one trap stolen, six from tools in alfalfa field. Feb. 10. Spent two hours in early morning north of Tempe on rocky hills looking for sign of Citillus

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Erichson 1934 New River 23. leriticaudis; none found. Moved to a camp 30 mi. north of Phoenix on east side of New River Valley. Camp on flat of valley floor near hill and a little north of Mt. Ochoa. Ground hard packed coarse gravel in fine soil, becoming more rocky and soil coarser as hill reached; hill granite much weathered. Vegetation predominately creosote and palo verde; some giant cactus, Opuntia leptocaulis, and a deer horn cholla. A bush in blossom found along draws near hill, specimen saved. Let 6.7 north and east side medium sized traps half on mesa and half on, small rocky hill N. of Mt. Ochoa. Line covered half a mile. Feb. 11. From 34 traps on mesa took 15 Dipodomys merriami and 1 Perognathus baileyi. Most of Dipodomys near a sandy wash, Perognathus on small rocky swell. From 33 traps on hill took two Perognathus intermedius 3 Peromyscus, and 1 Neotoma lepida; 3 traps missing: 1 Perognathus and 1 Dipodomys eaten, not saved; skulls only saved of 6 ste. Dipodomys. Heard Robins late in afternoon. Let 12 medium traps and 1 rat trap on mesa, 22 medium and 3 rat traps on east and south east side of same hill as previous night. Feb. 12. Took 4 Dipodomys merriami, 2 Perognathus baileyi and 1 Perognathus intermedius from traps on mesa; from hill took 3 Perognathus intermedius one Peromyscus. Desert Tortoise found in small cave under large

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Erickson 1934 New River 24. rocks on east side of hill. Set 36 medium traps on north and north east side of Mt. Ochoa starting at base and going diagonally up 2/3 way to top. Steeped rocky with outcrops of large rocks; vegetation creosote, palo verde, Opuntia liglerii, scotillo, and a small shrub, undistif. Pair of Red-tailed Hawks using top as a headquarters. Feb. 13. Took three Berognathus intermedius, two near base one near top of trap line; two caught by tail still alive; 3 Beromysus and 1 Dipodomyx merriani. 1 of Berognathus kept alive, escaped from cage during day. Dipodomys merriani caught in bird trap ran to some hole as one released from trap on Feb. 12. ran on all fours?, jumped a stick in the way with hind legs only. Broke camp in afternoon and moved to Wickenburg for the night. Feb. 14. In morning moved from Wickenburg to Mendon; fished up Horned Owl 10 mi. west of Wickenburg; from Wickenburg Mendon went into Harquahala Mts, at point of Gold Leaf Mine, then to broad wash (7 1/2 miles) south east of Mendon extending up into edge of this wash the mountains; camped at base of mountains 7 1/2 mi. from Mendon. Hills coarse rock in finer sand with outcrops of fractured rocks near tops of higher peaks. Vegetation chiefly creosote and numerous cacti of several kinds including giant, Opuntia Della liglerii, a deer horn type, and spiny and spinulas flat cacti. Some ironwood and palo verde near

Erichson 1934 Harquahala Mts. 3000ft, Yuma Co., Ariz. 25 wash. Entire length of range as viewed from highway north of it, seemed to be similar in nature and not favorable for gophers. Set 80 medium sized traps on hill southeast of old well in wash, done extending from base to and in horizontal band of rock outcrop about 400 ft., above level of base. Feb. 15, 1937. From trap line took 10 Peromyscus eremicus and one Dipodomys merriami; 4 of Peromyscus not saved. Last part of afternoon hunted birds; collected 1 Desert Sparrow, failed to locate any of Canyon Towhees or Thrashers. Feb. 16. For an hour early in morning hunted Thrashers and Canyon Towhee; failed to get shot at either. Moved to Salome, Yuma Co., Ariz., stopping at an auto camp. Afternoon spent at Harrisburg, 1765 ft., Yuma Co., Ariz., which is 4 miles south east of Salome and is the Nord Ranch. Ranch is on the south side of the Harquahala Mts., on the Centinel Wash. Consists of 25 acres in fields of alfalfa and gardens; a small pond, 60x30ft makes a continuous supply of water available for stock and native animals. Birds numerous around ranch; collected 5 Horned Larks, and 1 each of Say Thrush, Shrike, Sipping Sparrow and Pipits; other birds seen, on list for region. Feb. 17. Hunted at Nord Ranch last half of morning and two hours last part of afternoon; took 2 Horned Larks. Ranch is only cultivated area in many miles, is surrounded by mesquite thicket and creosote mesa

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Erickson 1934. Harrisburg, Chrenberg, 288 ft., Yuma Co., Ariz. 26 palo verde, giant cactus mesaa. Feb. 18. Moved from Salome to Chrenburg. Ducked up a spotted skunk killed on highway in Glamossa Mts., 10 miles east of Quartzite. Camped 1/2 mi. east of Chrenburg along small wash. Ground rocky, coarse gravel and sand. Vegetation creosote, palo verde, catclaw, and quail bush. Feb. 19. Looked south along river below Chrenberg for gopher sign covering sandy ridge of rocky mesa from wagon tracks extending south. Found a few very old mounds on ridge nearest river bottom about 1 mi. south of Chrenburg, no other sign found until about 3 miles south of Chrenburg and south of a broad wash. Made 7 settings here, three last mounds on rocky mesa between four in sand at base of ridges of mesa. Feb. 20. From 7 settings had two specimens of Thomomys b chrysonotus; one from rocky part of mesa, one from sandy draw. Found additional fresh mounds in sandy draw, made ten settings. Feb. 21. Took up 10 gopher settings; took 1 female and presumably had an other gopher in one of settings, but traps gone from hole, marks of one drag along in sand followed for a distance of 30 ft. where it was found, unfurled; other not located. Sand too soft to give distinct tracks, but depressions in sand along line which setting trap was dragged suggest trap was robbed by some carnivore, about size of coyote or possibly fox. There

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Crackson 1934 Chrenburg Barker, 440 ft., Yuma Co., Ariz. 27 tracks followed 200 yds. or more to rocky ground where all sign lost. Other settings undisturbed. Moved from Chrenburg to Barker via Quartzite and Bouse in afternoon. Spent night at hotel in Barker. Feb. 22. Spent morning on river bottom land south of Barker inquiring for and looking for places to trap sagmodon and gophers. Region has been protected from overflow flooding by levee, and is ditched for irrigation. Only one stand of tules found, these standing in and surrounded by water; one edge trampled dry cattle under mesquite other few few of arrowweed thin cultivated field. All inquiries brought same response, few remaining places that tules could grow had been recently burned off in preparation for a drain ditch the government is putting in. Made seven gopher settings in salt grass fields 2 mi. south of Barker. Established camp, 5 mi. east of Parker on mesa, at N. 10 base of Black Peak, a volcanic peak, with sand dunes east and south of it and extending some distance along north side. Camp on rock strewn mesa; vegetation creosote, burrow weed, galletia, and along small washes palo verde. Looked at gopher settings late in afternoon, 6 gophers taken, 7th setting filled in reset; three other sets made. Feb. 23. Rained from 8-10 and sprinkled several times later in the day. Moistened ground about two inches down. Spent first part of afternoon looking for places suitable for sagmodon. One drain ditch found

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Cruksaon 1934 Parker 10 mi. east of Quartzite, yuma Co., Ariz. 28 5 mi. south of Parker which had a stretch of unburned tules about 100 yds. long; tules dry with no evidence of new shoots coming up; bottom of ditch with wide deep cracks. Found a few runways and some droppings. Set 10 rat traps in runways. Looked at gopher settings, had 2 gophers; setting filled in on 22nd filled again; one untouched. Reset filled one and made 12 more settings. Set 36 medium sized traps in sand dunes 3 mi. east of Parker; vegetation scattered creosote and galleted Feb. 24. Took up 36 traps set in sand dunes, 9 sprung mostly by large Dipodomys judging from tracks, no captures. Took up 10 rat traps, caught one Neotoma alligula, one Peromyscus tail; 3 other traps sprung. Went to 12 Mile Slough south of Parker; it contained deep water; banks steep, only vegetation willows and arrowweed, no evidence of cotton rats or place suitable for them; followed up drainage ditches along in region south of Parker without finding any tules. Took up gopher traps, one setting filled in; took 13 gophers in remaining 12 settings. Feb. 25. Finished gophers taken on 24th. Out of three Sigmodon taken by Miss Kellogg. Feb. 26. Moved from Parker to 10 mi. east of Quartzite site via Bouse and Yuckelburg. Made camp 200 yds. south of highway on rocky flat between two small

Erichson 1934 10 mi. east of Quartzsite 29 washes running from south to north; lava mountains west, and north of camp, low rock strewn ridges to east and south; vegetation creosote, palo verde, ironwood, giant cactus and some cholla. Set 80 medium traps from camp start- west across flat between washes and up on to side of lava hill. Feb. 27. From 40 traps on rocky flat took one Perognathus intermedius; in 40 trap on lava hill had another Perognathus, two Neotoma lepida and two Peromyscus. Hunted Canyon Wrens on lava hill for an hour and a half, secured one, others heard. Set 80 traps, forty on rocky flat along edge of wash, 40 on lava hill. Feb. 28. In traps on flat had one Dipodomys merriami, in trap on hill 2 Peromyscus crinitus and one Peromyscus eremicus. Hunted Canyon Wrens for an hour without securing any; high wind blowing made conditions unfavorable. Moved camp to La Paz slough 9 1/2 mi. north of Ehrenburg, Yuma Co., Ariz. While enroute to slough found gophers in saltgrass mesquite association 4.3 mi. north of Ehrenburg; made 4 settings. Made camp 50 yds from slough in mesquite association, willows and cottonwoods near. Slough at point explored narrow 10-30 ft. across shallow with tule present, but much trampled by cattle; slough reported to extend 2 mi. to north where it connects with Colorado River and 3 mi. to south remaining narrow through- out its length. No very suitable places for Sigmodon found on west side of slough, but 12 rat traps set in

Erickson 1934 Chrenburg 30. Tules and in runways under roots or fallen willows. Three gopher settins made in mesquite bordering slough; some arrowweed at edges and of mesquite. March 1. Rat traps contained 2 tails of Peromyscus, 2 others sprung. Hunted birds for an hour, secured one Black Phoebe, failed to get Wilson Snipe. Took one gopher in 3 settings & 1/2 mi. north of Chrenburg and two in those 4.3 miles north. Made 13 more settings in same general region. Looked at these late afternoon, took 6 specimens; reset trap where young individual was taken. Moved to Blythe, Riverside Co., Calif. for night. March 2. Took up 7 remaining gopher settins, took one gpho. Started return trip to Berkeley at noon.

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Enclason 1934. Buteo borealis calurus 3 mi. west of Fort Yuma, Imperial Co., Calif. Jan. 4, 1934 A single individual seen perched in top of catalaw tree; at one side 2 ft below actual top; immature individual, remained quietly watching car for 5 min. as I moved it took off; flew towards river. 12 mi. west of Melton, Ariz. Jan. 14, 1934 A single individual seen on telephone post between Dane and Melton; flew off as car stopped. Tinajas Altas, Yuma Co., Ariz. Jan. 13, 1934 A single individual seen soaring over top of range, disappeared to east; reflected end of tail conspicuous as it wheeled. A raven flew fast at same time as this one noted.

Crickeson 1934 Parabuteo unicinctus harrisii. 2 mi. above Laguna Dam, Imperial Co., Calif. Jan. 1, 1934. Two seen soaring over head, out over sloughs; white markings at base and tip of tail and general dark coloration observed. A specimen found on shore, shot some time ago, maggot living on it, but plumage sufficiently in tact to show reddish brown on shoulders, under wing, and on thighs; also white marking of tail. Bates Well, Bione Co., Calif. Jan. 23, 1934 Two individuals perched on windmill, one on framework of vane, other on vane; remained perched until I was within 50 yds.; then took flight; a third appeared, and three circled overhead; one with distinct round spot of white on wing posterior to bend = same species?, red shoulders and white at base and tip of others noted; one with spots; seemed to have only a broad white tip to tail. Autolaquinto, Bione Co., Ariz. Jan. 24, 1934. cat of mounted 172 Three individuals seen over wash; flew to top of small rocky hill in wash, perched on rocks briefly, then flew south over wash, stayed low just over tops of mesquite; stroked wings most of the time, strokes rapid, strong for a hawk; no suggestion of labored flight of red-tail. About an hour later, flushed from top of mesquite stickel as I approached; circled overhead then lost to south; one of three had round white spot on wings; are these same three seen at Bates Well?

Erichson 1933 1934 Lophortys gambeli gambeli 12 mi. NE of Yuma, in Imperial Co., Calif. Jan. 1, 1934 Two individuals flushed and flew into low brush along canal to b 1 mi. below Laguna Dam. 7 mi. NE of Fort Yuma in Imperial Co., Calif. Jan. 2, 1934 a flock of 5+ seen to flush across road and taken refuge in brush and low grass at edge of date palm orchard. West base of Castle Dome, Yuma Co., Calif. Jan. 10, 1934 Flushed two individuals from near edge of road, flew into Creosote brush; top broke, fell forward over head as third glided to ground; no calls. a flock of 12 or more reported seen last evening. Same: Jan. 11, 1934 Several calls heard from brush along water overflow from mine. People living at mine feed quail grain regularly. Tinaja Alto and Tule Tanks, Yuma Co., Ariz. Jan. 21, 1934 None seen or heard at these two places, though man in Milton reported them as common here. Ouitobaquito Jan. 23, 1934 15 mi. N of monument 172, Mexican boundary, Sima Co., Ariz Flock seen as we crossed wash. Jan. 24, 1934 Q uitobaquito 1/4 mi. East of Monument 172, Sima Co., Ariz. Jan. 24, 1934 Saw flock of 25 or more in wash, under mesquite brush; feeding; calling.

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Eckerson 1934 2 Lophortyx gambeli gambeli Bates Well, Pima Co., Ariz. 1385 ft. Feb. 3, 1934 Seen and heard frequently near well during stay at Well. Harquahala Mts., 3000 ft.; Yuma Co., Ariz. Feb. 15, 1934 Flock seen on three occasions during stay at camp 7½ mi south east of Mendez; twice in week; once several 100 ft. upon gradual slope of foot hill, no water available for miles from our observation and report of old timers; [illegible] Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 17, 1934 Heard in vicinity of cultivated fields and pool at farm which is Harrisburg. Barber, 440 ft., Yuma Co., Ariz. Feb. 26, 1934 Flocks seen a number of times in cultivated area south of Barber during search for ligodon. La Paz Slough, 8½ mi. N. of Ehrenburg, Yuma Co., Ariz. Mar. 1. Flock flushed from edge of water, flew into mesquite thicket.

Crickson 1934 Hummingbird Tingajas Altas, 1150 ft., Yuma Co., Ariz. Jan. 13, 1934 An individual seen foraging at base of rocky slope; frequented Bee bage; came near me, perched; evidently observing me; then went on foraging. Tingajas Altas Jan. 15, 1934 9:00.0 ne seen foraging on south facing rock slope. 12:00 As went to tent found hummingbird in it; it flew to closed end, clung to cloth just below ridgepole; head up; I closed flaps as tightly as possible, but still a large gap; approached bird; it flew toward open end, to side and then back to roof of tent near top; did not move until caught in hand; saved as specimen no. 176; another individual seen foraging latter in the day, had same markings. Bates Well, 1385 ft., Yuma Co., Ariz. Feb. 3, 1934 An individual seen on two different occasions during stay at well, both times near red trap marker; seemed to be same species as seen at Tingajas Altas on 15th.

M. M. Erickson, 1933 1934. Colaptes cafer collaris Palm Canyon, Riverside Co., Calif. Dec. 27, 1933, 9:50 - Cals of a flicker heard from high on slopes of canyon. Fort Yuma, Imperial Co., Calif. Jan. 3, 1934. A group of six, possibly more seen along slough above Laguna Dam; were foraging on ground in open grassy short sparse grass near dead willows; one taken; others flew into willow arrowweed association. Calls have been heard on two previous days, but before seemed to be a single individual. Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 17, 1934. Red-shafted flicker flew over head from near ranch to base of mountains. La Paz Slough, 7½ mi. N of Ehrenberg, Yuma Co., Ariz. March 1, 1934. Seen and heard in neighborhood of slough.

Crickmore 1934 Colaptis chrysoide mearnsi Quitobaquito, Pima Co., Calif Ariz. Jan. 25, 1934. 9:30 One heard calling west of spring; was perched on top of giant cactus near top of small rocky hill; flew over hill when shot at, was not seen or heard again. Quitobaquito, Pima Co., Ariz Jan. 26, 1934. 8:00 One heard calling on mesa NW of spring and over hills from it; located in top of giant cactus; flew as I came within a hundred yards of it, seen again on top of another cactus; flew when I was at about same distance; about 15 min. later saw one go from ground to within perch a few feet above on dead cholla; shot at; three or four others flew up from near same spot; one perched higher but flew short distance then stopped in mesquite about 4 ft. above ground; taken; proved to be male; gizzard empty except for small amount of sand. Others seen and heard during morning, but always flew off before in range. Around 11:00 followed what seemed to be a pair from manner in which kept together; perched in same clump of ocotillo several times near together; flushed twice from near the same place on ground where they had been foraging. Mesa covered with giant cacti, cholla, ocotillo, ironwood, palo verde and some smaller shrubs.

Erickson 1934 2 Colaptes chrysooides meanei Q milbaquito. Jan. 27, 1934 8:00 Pair seen flying over mesa south of camp, about where pair seen yesterday. Followed; lost as settled on ground, picked up again when one called from top of giant cactus; it flew to ground while I was 100 yds or more distant; failed to locate again. one other heard calling near hills at about 7:00 could not locate it; no others seen or heard during morning. Bates Well Jan. 29, 1934 Various individuals heard, gave "whecker" call, single shrill one and drummed on fence post. About 8:30 picked up a pair on lava hills east of Well and on north side of Growler Pass. First seen were low on slope of hill on ground among rocks. followed them eastward for 300 yards, all of time staid well in advance of me; spent considerable time on ground just at base of lava hill, feeding; some time low in lava. One presumably male; several time perched on giant cactus giving single shrill call repeatedly; once drove out a Sila Woodpecker which had been squawking near by; flew in its direction, Sila left vicinity as I dicker was in shriek a few feet; Dicker gave call from top of cactus afterward. Male seen perched on top of giant cactus slow on slope of lava, called, female flew to same cactus clung at side with only head in my view; shot at them

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Crechav 1934 Colaptis eryxoides meanai. female flew off strongly around & towards next hill 100 yds distant, male flew more labored descending as it cleared small crest of hill. spent twenty minutes or more trying to locate it, but failed; went on in direction female had taken; soon heard and saw her in top of giant cactus on slope of hill 100yds beyond where first shot at; shot at her; flew off low along side of bare hill followed by eye 100 or more yds. still flying low when lost to view, attempted to locate it again but was unsuccessful. Two hours later as returned to place where first shot at pair, picked up male 30yds from cactus where it in which it was shot; nothing more heard from female though I was in vicinity and feathers flew when shot no suspect it was killed, but could not find it. Male crop contained sand and fragments of insects probably ants. Bates Well, Jan. 31, 1934 7:20 a.m. Male heard drumming on dead branch of a Palo Verde tree 1/4 mi. N.W. of Well; female in orotillo 100 yds away giving whirring call at intervals; both flew long before within gun range; followed for 200 yds. or more, then uncertain if following the same pair; believe in velocity by calls had switched to another pair still farther N.W. of Well. Shot at one in bush, 4 put up in one twice as high; failed to hit it; 3 others flew up from ground near by; four flew in same general direction for a short distance then split into pairs one going east other north, lost.

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Crickaon 1934 Coloptus chrysoides mearni Later a pair located in same general region on top of giant cactus, one on top; other an lower drumming; only one on top hit; proved to be female; male flew to top of giant cactus 100 yds. away called frequently, as approached flew to east;-called from here for some time; then in about 40 minutes came back to point where female killed; silent near ground; flew as I moved gun; stayed well out of gun range moving from top of one cactus to another; soon lost. An individual giving loud whistled call in region from which male taken on 29th. Bates Well Feb. 1, 1934 Shortly before eight, located a licker on top of giant cactus drumming; stalked it and collected it; another evidently mate flew up from ground near cactus. One drumming proved to be the female; perch had been on top of large cactus broken off at a height of 8 ft; seemed to use woody stems sticking up from break as instrument to drum or. Male flew to another cactus called, circled as I followed it, but stayed well out of gun range.

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Erickson 1934 Centurus u. uropygialis Quitoquito, Pima Co., Ariz. Jan. 24, 1934. 7:30 a.m. we heard calling in mesquite tree at edge of wash, another perched near top of giant cactus within a few feet of the other; when fired at both flew off; located again by calls; one seen in top of giant cactus other near, but not seen; about 50 yds. from point where last seen; shot one hit, but flew some distance; in a few minutes heard one which proved to be female calling located in top of giant cactus 60 yds. from where last seen; collected; other, male, found dead on ground under a mesquite tree 50 ft. from cactus in which it was shot. Both contained mistletoe berries. Quitoquito Jan. 25, 1934 12:00 noon. One heard calling on top of giant cactus on opposite side of wash from which pair were taken on 24th, about 100 yds., flew into wash, in mesquite tree eating mistletoe berries; collected; proved to be a male; testes smaller than male of yesterday. Was it taking up territory left vacant by taking of pair yesterday. Quitoquito Jan. 26, 1934 Seen and heard frequently on mesa NW of camp. Two in tree with mistletoe berries chased each other seemed to be more sexual play rather than fighting one flew out; other stayed eating berries; flew at a S chainopepla that came into same tree. Quitoquito. Jan. 27, 1934 One seen on top of giant cactus, shot at; injured wing; when

Crickson 1934 2 Centurus u. eupizzalis attempted to catch it, got to base of trunk of mesquite about a foot through; stayed on opposite side from me with complete success; several times climbed up trunk a foot or more; evidently preferred this to being on ground; finally caught when second person came up; squawked loudly; mate came calling; flew off as started to follow it and mate - male became silent; taken in tree 50 yds away; both had been feeding on mistletoe berries. A single one seen flying over head north of camp; flight seemed that of flicker; stuffed in top of mesquite; collected. Bates Well, Pima Co., Ariz Jan. 30, 1934 Species assenerous and calling continuously in Growler Pass east of Bates Well and up onto lava hills both to-day and yesterday. One called from top of giant cactus, flew down to lava rock; drank by sipping from water collected in hollow of one of rocks; dipped bill in then lifting head chicken fashion; did this three times when seen, then flew to mesquite trees in Pass. Bates Well, 1385 ft. Feb. 2, 1934 1 individual seen working about 3 ft from ground in a mesquite tree means main work; collected. Was perched on upper side of sloping branch; worked at same spot for a minute, pecking hard enough to make an audible sound. Mate? called persistently in general region soon after female shot.

Crickerson 1937 Ephyraeius v. nuchalis Bates Well, Pima Co., Ariz. Feb. 3, 1937. Individual seen and heard several times during days here; work of one found on branch of mesquite tree; branch 4 inches in diameter, holes encircling branch about 6 ft. above ground; some old squared in slope, others freshly made round; flies attracted by sap first drew my attention to work.

Erichson 1934 Mysarchus cinerascens cinerascens Tingajas Altas, 1150 ft., Yuma Co., Ariz. Jan. 15, 1934. One seen in mesquite tree near mouth of canyon with tank, collected. Tingjas Altas, Jan. 17, 1934. One seen in mesquite tree near point where one was taken on 15, collected; wing damaged by shot, bird saw refuge in thick cactelaw tangles of region; finally driven from this and secured as it fluttered across open area. 1 mi. east of Papago Well, Feb. 4, 1934. One flew over crest of hill into palo verde tree near point from which I was watching oak warren; collected. La Paz Slough, 7 1/2 mi. N of Ehrenberg, Yuma Co., Ariz. March 1. One in willows about slough, singing.

Eckson 1934 Iagoornis nigricans nigricans Bathlos, Imperial Co., Calif. Jan. 2, 1934. 3:00. A single individual located by its call note; wras perching on concrete wall of sluices at about center of water flow. 5 mi. north of Borria, Maricopa Co., Ariz. Feb. 10, 1934 Single individual seen foraging from fence along irrigation canal. La Bay slough, 8 ½ mi. N of Ehrenburg. Yuma Co., Ariz. March 1. single individual seen foraging near slough; first used small 2 ft. stub as perch, then flew to drooping branch 6 ft above water; in 10 min. watched flew frequently down to water and secured some food. collected; forehead moist and feathers worn and discolored possibly from frequent immersion in water?

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m. m. Erickson 1933 Sayornis saya Olm Springs, Riverside Co., Calif. Dec. 28, 1933 11:30 an individual seen in vacant lots near south edge of town; used mesquite bush, clothes line pole, fence posts as perches; flew down near to ground when catching food, then up to perch; one rested on ground, then hopped to low stone; sallies usually 10-15 feet out from post; no call notes heard. Ditch above Laguna Dam, Imperial Co., Calif. Jan. 1, 1934 Several seen in dead Willow belt along edge of slough; chose low perching places, usually 3 or 4 feet high sometimes up to 10 or 12 feet rarely higher; were not observed to go out over water as did the Vermilion Flycatcher; one taken as specimen. Jan. 3, 1934 Same location; a number seen to day and two taken. Individuals spaced out; distances not determined. Occasionally gave call note. Jan. 3, 1934 Same location; a number of individuals present; seemed more numerous than on first day but this may be lack of observation or more territory covered. Side of irrigation ditch, 6 mi. west of Fort Yuma, Imperial Co., Calif. Jan. 4, 1934 One individual seen perching in creosote bush in area of scattered creosote, mesquite, etc.; shifted look out perch frequently. A second individual seen a 1/2 mi. farther down ditch. Used small 3 ft high bushes at

[illegible] [illegible] [illegible] [illegible]

Erickson 1934 2 Layornis saga water edge for perching; took insects at distance of 3- 4 ft., once perched on ground; several times flew almost vertically up for insect; taken as specimen. This the fourth, all of which have been males. Slough above Laguna Dam, Imperial Co., Calif. Jan. 7, 1934 An individual seen at same point as that at which one of two taken on Jan. 2, 1934. West Base of Castle Dome, Yuma Co., Arizona Jan. 10, 1934 single individual seen on wood pile, ground and pipe near one of buildings at mine; all of perches below 1 ft.; flew off into creosote bushes. Same as on Jan. 10. Jan. 11, 1934 One heard calling near seepage from tank of water pumped daily, from the mine at this place. This water has enabled a cottonwood 15 ft. high to grow and other bushes of several kinds. Melton, Yuma Co., Arizona Jan. 11, 1934. One individual seen and heard calling near a railroad tressel; used ties of tressel and telephone wires as perch. Followed another individual north of the town from b-6:3 5:30-6:00. Was first noted on fence post at A, as I approached it moved as indicated to B, while watching sparrows it came near to point at C; began to drive it to NE; it shifted from one fence post to next, on to east, to road.

Eichhorn 1934 3 Dayornio saya corner of field; then flew out to a perch on low bushes 20'; tried to force it to East it moved on south and somewhat west to E, then by a long flight back to A; tried to drive it to SW and west. perked about twice on bushes, then on some posts at south side of field, then across the road. to brush; did not attempt to follow farther. square part of area about 10 acres. Allowed me to come within about 15 yds. before shifting perch; as I approached slowly would make one or more forage sallies, back to same perch or one farther on.. nearly died when pursuit given up. Tunajao Altos, 1150 ft., Yuma Co., Ariz. Jan. 12, 1934 One flew away from lowest tank as I approached around duck.. Tunajao Altos Jan. 16, 1934 One heard calling on bank of wash below tank; perked on low shrubs, two feet high; taken as specimen; another heard on opposite side of canyon - 300 ft. away. Tule Tank, 1250 ft., Yuma Co., Ariz. Jan. 18, 1934 5:00 p.m. One seen using creosote bush as perch, on flat 500 ft. from mouth of canyon on plain. A Rock Wren on ground near flew into same bush, Shrike flew off but no connection between two. Lakes Well Pima Co., Ariz. Feb. 2, 1934 8:30 in morning one seen using creosote bushes north of well as forage posts. Collected first and only one seen

Creechason 1937 Sagornis sayo. near well. Harrisburg, 1765 ft. Yuma Co., Ariz. Feb. 16, 1937. One seen foraging over recently cultivated field, used old uprooted stump as perch; collected; another seen using fence near pool and shed as perches, at one time distant, Mt. Bluebird, and phobe all within 30ft. on same prine.

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Ereckson 1934 Gyrocephalus subinus mexicanus slough above Laguna Dam - Otthles, Imperial Co., Calif. Jan. 1, 1934 a male observed several times in course of morning perched on lower stubs of dead willows; usually below 6 feet. Same as above. Jan. 2, 1934 One, presumably same individual seen in same willow clump; used many of same perches. Same as above Jan. 3, 1934 Individual seen at same location; taken as specimen. When picking it up, another male flew into cotton willows 60 feet away and was off almost immediately. Parker, 440 ft., Yuma Co., Ariz. Feb. 23, Individual seen in willows near river.

Otocoris alpestris Harrsburg, 1765 ft., Yuma C., Ariz. Feb. 16, 1934. Flock found feeding in field of alfalfa; alfalfa short either recently cut or grazed. When shot at flock rose, wheeled then settled in another part of field. Harrsburg in same Feb. 17, 1934. Hunted in morning, birds much more wary and difficult to approach within shooting range. Not found in afternoon.

Ericsson 1934. Corvus corax sinuatus Tingis Altas, 1150ft., Yuma Co., Ariz. Jan. 12, 1934. One heard calling from top of range, not seen. Same. Jan. 13, 1934 5:00p.m. One flew over top of range going NE. a red-tailed hawk circling in same region. Tingis Altas. Jan. 14, 1934 4:00p.m. one heard calling lower than other times, spotted as it flew off from NE facing slope about 1/3 of way up cleft; flew directly south until out of sight. Tingis Altas Jan. 17, 1934 3:30p.m. Single individual seen at top of mountains above tanks; circled for several minutes, then perched on rocks at top; called, circled again, perched, then circled and disappeared. Tule Tank, 1250 ft. Yuma Co., Ariz. Jan. 20, 1934 3:00p.m. One heard calling over second ridge east of tank; was not located; possibly was merely flying over, from calls was going north. Bates Well, Pima Co., Ariz. or gliding Jan. 23, 1934. 12:00, about. One seen soaring very high up, was going toward SE; three Harris Hawks, lower. Raven called twice when directly over head. Bates Well. Jan. 28, 1934 3100. One heard calling high overhead. 1 mi. east of Pofago Well Feb. 4, 1934 Pair seen flying over small granite hill.

Cochran 1934 2 Corvus corax sinuatus Hila Bend, 728ft., Maricopa Co., Ariz. . Feb. 7, 1954. 7+ seen at side of highway feeding on dead jack Rabbit; as I approached all flew short distance away from highway and alighted on ground among creosote bushes; first walked away then flew short distance and settled again as I approached; as followed one or two at a time flew away; did not return to rabbit during time I was in vicinity.

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M. M. Erickson 1933 Auriparus flaviceps flaviceps Palm Canyon, Riverside Co., Calif. Dec. 27, 1933 8:45 a. Single individual seen foraging in brush enclosed in last loop of Palm Canyon road; it worked over twigs for five minutes; gave brief call note and flew across road to other brush; spent part of time in mesquite and in [illegible]; a male. 9:00. One seen in cottonwood tree in which ringlet had been watched just previously; seen to get food from leaf blade once; frequently from leaf stems and smaller twigs; was first attracted to it by call notes; 9:30. Single individual seen on rocky slope above floor of canyon, foraging in low bushes = this one a male. Fort Yuma, Imperial Co., Calif. Jun. 4, 1934 A single individual or possibly two seen on brush of dry wash on road from highway to Mexican boarder. 11:00 A pair seen in bushes - catalaw, quail bush, along railroad, 4 mi. NW of Fort Yuma. Both individuals called frequently. One taken other flew off for time several minutes, then came back calling frequently; stayed in bush from which other had been shot as I looked for latter, called persistently. After finding one shot, other could not be located. Evidently this was a mated pair.

M. M. Erickson, 1933 Palm Springs Chamaea fasciata lenshawii Chino Cañon, Riverside Co., Calif. Dec. 30, 1933. 10:00. In tangle of grape, under cottonwoods at edge of swamplike strip along stream, heard hoots of two wrens; one glimpsed momentarily. Soon pit-pit-pit trrr call from direction in which they disappeared. 10:30. Single individual scolded loudly as I passed mesquite bush in which it was foraging; seen momentarily, then disappeared in dense brush behind toward stream. Others heard giving pit-trr call ¼ mi up the stream, and another in dense mesquite thicket on east wall of canyon.

Erickson, 1933 Dryomanes bewicki eximophilus (Baird's Wren) Palm Canyon, Riverside Co., Calif. Dec. 27, 1933 9:50 a.m. A single individual seen 1/4 mi. of canyon from parking area on dam like structure; away from stream, at point where steep rocky slopes begin; had general gray brown coloration, conspicuous white superciliary stripe; light white- grey white on throat darkening posteriorly; undertail coverts gray, barred with black; tail long for Bewick type. Individual stayed on or near ground in low brush; getting food from ground and twigs; worked in four" small clumps of for 10 minutes, then flew off. into mesquite nearer stream; lost. No calls uttered. Chino Canon, Palm Spring, Riverside Co., Calif. Dec 29, 1933. 12:00 - One heard giving code note in brush along stream at point where its really begins to broaden out from narrow canyon up side of mountain. Seen foraging in low tangle of vines and bushes of bank; collected. Others heard in lower part of canyon near cottonwood growth, but none seen. Chino Canon, Palm Spring, Riverside Co., Calif. Dec. 30, 1933 Individuals heard several times but none secured.

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Crickaon 1934 Helodytes brunneicapillus conesi 4 mi. north of Fort Yuma, Imperial Co., Calif. Jan. 7, 1934 One seen in late afternoon in mesquite bush at side of road in cultivated area; collected. Welton, Yuma Co., Ariz. Jan. 11, 1934 Two, apparently a pair seen on NE edge of town in trees along fence, in region of once cultivated field. One singing from perch at edge of tree on lower limbs, about 8 ft. above ground. Flew into brush 50 ft. away as I approached. Auitobaquito, Pima Co., Ariz. Jan. 26, 1934 Seen and heard during early part of morning at frequent intervals and on all parts of mesa covered in mornings trip. Sang from ocotillo frequently; perched somewhat below top of branches. Rales Well, Pima Co., Ariz. Jan. 28, 1934 7:30. Singing; still very dark though light beginning to show in east. First bird song noted, common in region, but from number of songs less abundant than at Auitobaquito. Specimen 259 taken at edge of wash and lava hill in Crowler Pass; was near one of small cups of water formed in hollow of lava and had been drinking.

Erichson, 1933 Catherpes mexicanus concolor (Canyon Wren) Palm Canyon, Riverside Co., California Dec. 27, 1933 9:00 Single individual heard rustling the dry leaves surrounding the base of one of the palm trees; came nearer to the surface of the dry leaf mass when I squashed; flew a few feet into a mesquite clump and went into another palm tree shelter. 11:25 Another individual located 1/8 of mile up canyon from where first was seen; first detected by rustling sounds as it moved about under the sheath of dry leaves enclosing the palm tree trunk; heard here for 5 mins. then came to surface about four feet above ground, within 4 feet of me; flew behind me toward ground and into another palm sheath through a small opening at ground level; was seen here momentarily then lost behind leaves; two palms were 11 yards apart. Uttered a clear call note as it left first palm and again briefly when it reached second tree. In both cases trees were in dense clumps in open part of canyon. No evidence of these Wrens were found in the narrower draw higher up the canyon.

Erickson 1934 2 Catherpes mexicanus confersus Bates Well, Pima Co., Ariz. Jan. 29, 1934 10:00 Pair surprised on lava hill 2 mi. east of Well on north side of Growler Base. First seen in rocks of lava about half way up hill; five or six feet from me; quickly moved away up slope, most of time out of sight; seen under bush; one shot; in 5 mins. other began to call and approached location in which one was killed; moved away as I worked toward it; called again then came on to top of one of rocks; sang; collected it. 5:00 One seen on hill about 1/2 mi. west of above location. Bates Well. Jan. 30, 1934. 8:30 a.m. Found pair at point where one seen at 5:00 yesterday, located by call notes; male sang several times from top of rock; lost; picked up lower on slope by call notes, shot at here; it flew 25 ft., then perched on top of rock, seemed to rest dully on it. Remained in this position without moving for 5 mins. I started toward it cautiously, at same time mate called; it turn one shot at turned its head, fired at it again. Had leg broken just above toes, and one other shots in head and two in body; perhaps first shot merely broke leg? Mate did not call again for half an hour, then high on rocks above; sang near point it had earlier, lost as I approached and could not be relocated. Heard again around 5:30 p.m. but could not get see it. Bates Well. Feb. 1, 1934 8:30 a.m. Located pair on lava hill east of Wellon north side of Growler Base; shot at male, but failed to

Erickson 1934 Catherpes mexicanus concolor hit it; it reappeared immediately a few feet from this point, then moved rapidly downslope; mate following from exchange of call notes. Relocated downslope in next thick rock patch; one sang, collected, other stood nearby, called; also taken. Worked north on westfacing slope of lava hill for 300 yds or more without locating another pair; counter hill similar large slabs of lava rock interspersed with areas of less rock and granite of hill showing; these areas with palo verde bushes and some creosote and a few other plants. A second pair located low on slope 350 yds. from last ones, were aware of observer and moved more rapidly and greater distances than others observed: flew 15-20 yds several times, then would work more slowly in rocks, finally calling to mate; 20yds one collected; other some distance at time; became silent and remained so for 10-15 min.; then heard calls over small ridge; followed and secured; (no. 278) proved to be female of pair. Of first pair shot both were badly damaged, in [illegible] one taken while (no. 280) (no. 279) singing no gorads could be made out. In other ovary badly damaged, but determinably female. Another male heard singing on hill west of one on which second pair secured. New River Valley 30 mi. N of Phoenix, 1650 ft, Maricopa Co., Ariz. Feb. 13, 1934. One heard in song on rocky hill SE of camp.

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Erickson 1934 Catherpes mexicanus conspersus Gold Leaf Mine, 6 mi. south of Winter, Yuma Co., Ariz. Feb. 17, 1934. One heard in song on rocky slopes east of mine building while we were stopped to get directions; about noon. 10 mi. east of Quartzite, Yuma Co., Ariz. Feb. 27, 1934. Call note of one heard at base of lava hill, west of camp; individual located and collected, no clue to a mate unless one heard in song 50 yds. up on slope was the male; this last one glimpsed once, but could not be relocated; no call notes heard during 20 min. I was in region. Another heard in song still higher on slope when second individual was seen. Bird taken a female so male in song was probably mate. 10 mi. east of Quartzite. Feb. 28. Hunted Canyon Wrens for an hour in early morning, none seen or heard; high wind blowing made conditions unfavorable.

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Erickson, 1933 1934 Salpinctes obsoletus obsoletus Chino Canon, Palm Springs, Riverside Co., Calif. Dec. 30, 1933 A single individual seen and heard on rocky east wall of canyon. West base of Castle Dome, Yuma Co., Arizona. Jan. 10, 1934 A single individual seen on side of one of small rocky hills at base of dome; no call noted heard during 5 mins. observed. Tunajas Altas, Yuma Co., Arizona Jan. 15, 1934 An individual flushed from near or in a small cave in side of steep draw above tanks, about 1400 ft. flew to opposite side = 12 ft. into rock tunnel, out onto a rock and out of sight scolding as event; heard a few minutes later on rocks above those from which it was flushed. Tunajas Altas. Jan. 17, 1934 One calling from rocks 20 ft above lower tank just at dusk; continued to call for a minute or more shifting position on rock twice; then went out of sight, a more plaintive contented chip heard from this general direction. A bat flying over water at this same time. This species has been heard frequently during days spent at this camp. Tule Tank, 1250 ft., Yuma Co., Ariz. Jan. 18, 1934. One seen on plain at mouth of canyon; foraging on ground moved by hopping; went up into some bush in which Roy Shobe was perched; as shot at; it flew off toward hill; but stopped short of them; lost.

Creekaon 1934 2 SALPINOTUS OBELETUS OBELETUS Tule Tank; Guma Co., Ariz. Jan. 17, 1934 Heard on rocks above canyon tank. Tule Tank Jan. 20. 9:00 a.m. One seen foraging on ground near bush at edge of main wash at mouth of canyon, on side farthest from rocks; collected it, but badly shot so not saved. weight 17.25g. Others have been heard on rocky slopes during day. Quito-baquito, Pima Co., Ariz. Jan. 24, 1934 Two, presumably a pair, seen on higher part of wash in atriplex sp.?. Were followed for 100 yds. or more; one sang from tops of bushes several times; two kept moving in same general direction frequently within a few feet of each other; foraged on ground; flew about 15 yds. when flushed by my approach; lost track of when shot at thrice. 9 mi., east of Papago Well, 1100 ft., Pima Co., Ariz. Feb. 5, 1934 Pair observed to-day and yesterday on east side of small granite hill; one sang frequently from perch or top of rock; second frequently seen perched on a nearby rock; followed from top of hill out on to mesa, but not seen or heard on west side of hill except at crest.

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Erickson 1934 Mimus polyglottos leucopterus Q. mitolaquinto, Pima Co., Ariz. Jan. 25, 1934. One seen perched about 1 ft. below top of mesquite in wash where these trees thick, but growing as individuals rather than a thicket; shot at; evidently wing injured, but escaped by running into brush. Were not heard singing. Q. mitolaquinto Jan. 27, 1934. One flew into palo verde tree; fed on mescalito berries. collected. Bates Well, Pima Co., Ariz. Feb. 3, 1934. Have been seen and heard frequently, for time spent at well; rarely sang, but gave a "churr" note one alternating with another or two others, and both moving off just ahead of observer, keeping out of sight.

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Crickson 1934 Tosostoma Quitobaquito, Pima Co., Ariz. Jan. 25, 1934 An individual heard singing in mesquite growth of wash; stalked it; finally located in mesquite a few inches below the top most branch; gun failed to fire; Thrasher flew from perch toward ground and into brush. Quitobaquito. Jan. 28, 1934 Thrashers have been heard in song frequently during stay, usually in wash east of camp, less frequently on mesa north of camp. Bates Well, Pima Co., Ariz. Jan. 31, 1934. Heard Thrasher singing in small wash on mesa north of camp; was perched on top of seven foot giant cactus; as I stalked it flew toward ground in a few minutes was singing again; this time perched on bare branch at side of mesquite tree 1 or 2 ft. above ground; song interrupted by long pauses followed by brief period of song; continued this as I worked to within gun range; flew away unharmed as I fired, sang briefly near by within two minutes, then silent Bates Well. Feb. 2, 1934. on tank 10:30. Saw a pair foraging on fine soil above stream bed. One under small bush, forbed into ground with bill threw dirt to one side; forbed once to 3 times while standing in one position then moved a few inches repeated; Twice seen to secure something an inch long; other member of pair working under bushes 10ft away in

Erichson 1934 Toxostoma same manner, as I came nearer first one then the other moved ran down incline of bank; flew across a two foot gully and disappeared in brush of opposite side. Examination of ground where birds were probing showed numerous holes made by them; most 1 inch long and a half inch in diameter, some slightly wider and 2-2\frac{1}{2} inches deep; small amount of fresh dirt near; each hole goes into ground at slight angle. Such probings about 6 inches apart on average rarely farther apart than two feet; followed route taken by pair for 50 ft. by means of their probings which were in open ground between scattered bushes of region. Bates Well. Feb. 3, 1934 Thrashers have been heard frequently during days at Well, but as usual elusive; much more common in thickets near wash, but a few heard in trees on mesa. 1 mi. east of Bofago Well, Pima Co., Ariz. Feb. 6, 1934. Probings similar to those seen at Bates Well common in fine soil around creosote bushes; but only one bird that might possibly have been a Thrasher seen, and one doubtful in song in distance. 6 mi. west of Sela Bend, 728 ft. Maricopa Co., Ariz. Feb. 7, 1934 Individual heard singing from fence post along railroad, burst by and extending above post; bird flew

Erichson 1934 Toxostoma toward ground; a few bans of song given almost immediately then quiet; no trace of bird found other than a few feathers. Harguahala Mts., 3000ft., Yuma Co., Ariz. Feb. 16, 1934. One heard and seen singing from top of 25 ft. giant cactus, on mesa at base of mts., cactus of cholla and prickly pear type numerous in region. When shot at to ground then Thrasher flew, to top of another cactus, sang again; as I approached flew down to ground lost.

Erickson 1934 Oroscopus montanus Quitobaquito, Pima Co., Ariz. Jan. 24, 1934 Seen in wash 1 mi east of Quitobaquito; first noticed one under mesquites in region; general impression of a brownish gray bird, somewhat lighter below, was on ground near low bushes; paused but head held up then pecked at ground; always at something within reach few times observed; was thrust like in its foraging method as seen; but did not stand as erect as usual thrush type; at this time noted one in mesquite, perched on limb about six feet from ground on one of lower limbs of this clump; evidently watching me but not alarmed; collected it; one that had been feeding and another not seen before flew just over tops of bushes = 2 or 3 ft. into other mesquites. lost. One taken made into a skeleton; throat and stomach contained miselae berries. Quitobaquito Jan. 26, 1934 Two individuals seen at widely separated places on mesa north west of camp; a third collected; when seen were perched at edge and about half way up = 6 ft. in trees of mesa. One seen on 25th. in dense mesquite of wash. Quitobaquito Jan. 27, 1934 Seen foraging on the ground on mesa, among low bushes; when one collected a number of others, 2 or 3 or perhaps more flew out from same place.

Erickson 1934 Turdus migratorius prospinque Bates Well, Pima Co., Ariz. Jan. 23, 1934 Single individual seen near water trough. Quilobaquito, Pima Co., Ariz. Jan. 28, 1934 Calls of a number heard in wash near camp on several occasions during stay in this region. Bates Well, Pima Co., Ariz. Feb. 1, 1934 Robins seen much more numerous to-day than on our first arrival though no actual counts made, seen in mesquite along wash most frequently within a mile of water trough. Seen to feed on mistletoe and forage on bare ground xerxes of creosote association in typical thrush fashions increase due to migratory? Bates Well Feb. 3, Still common around well, perhaps more abundant, calls frequent, but no songs heard. New River Valley, 30 mi. N. of Phoenix, Maricopa Co., Ariz. Feb. 12. Calls of a few individuals heard late in afternoon of 11th and early this morning have not been heard during rest of day or previous to yesterday afternoon. Harquahala Mts., 3000 ft., Yuma Co., Ariz. Feb. 15. Two individuals heard and seen on rocky hill 400 or more feet above level of camp; within first perched in ocotillo branches, flew off and disappeared to north east. Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 17, 1934. Robins abundant in cultivated fields around pool; foraged in short alfalfa, particularly where recently irrigated,

Erickson 1934 2 Turdus migratorius propinquus Billbirds feeding at same place; also used water on fields for bathing. As many as 15 individuals seen in one small corner of a field and others present at other places on the farm. Chrenburg, 288ft., Yuma Co., Ariz. Feb. 21, 1934. Three seen feeding in wide wash two and half miles south of bridge, staid in trees with mistletoe berries for some time then flew toward river. La Paz Slough, 8 1/2 mi. N. of Chrenburg. March 1, 1934. Robins common along slough foraging on ground along moist edges of slough.

M.M. Erickson, 1933 Olroptila melanoa melanos Palm Springs Riverside Co., Calif. Dec. 28, 1933 of vacant lot 11:30. Single individual seen in mesquite and arosite; staid low in bushes, below two feet. foraged from twigs and leaves; flew 20 feet to another bush, lost; no voice. 25 miles N of Yuma or Yuma-Castle Dome Road; Jan. 9, 1934 A pair seen in wash along road, black crown conspicuous.

M. M. Erickson, 1933. 1934 Corthylis calendula cineracens Palm Spring, Riverside Co., Calif. Dec. 27, 1933 8:55 a.m. Single individual seen foraging in cottonwood tree near stream in lower part of canyon. Staid in leafy crown; at three different times gave booming call note; wing bars distinct, light around (?) eye; could not see crown of head; flit of wings and shifting of position typical; several times hovered near leaves securing food. remained in same tree upwards of ten minutes stood mostly in top of crown 20 feet above ground. 11:20-11:30 Watched a single individual in young cottonwood growth, about 15 feet high; when first seen was only a few feet above ground, 15 feet away; could not see any coloring on crown other than gray green of back. 11:35- Another individual seen 35 yds. down stream from one seen at 11:20. Crown did not show any color. Yuma, Yuma Co., Arizona Jan. 3, 1934 A single individual seen foraging in partially killed willows along sloughs about 2 mi. above Laguna Dam, California Side of river. Auitolaquito, Dima Co., Ariz. Jan. 24, 1934 Individual seen and heard foraging in mesquite trees in wash east of monument 172. A shallow puddle cattle 100 yds. distant. Bates Well, 1385 ft. Gino Co., Ariz. Feb. 3, 1934 Individual seen and heard in trees and brush along wash, frequently during trail spent here.

m. m. crrckon, 1933. 1 Ohamoppla nitens lepida Palm Canyon, Riverside Co., Calif. Dec. 27, 1933 9:30 a male flew to an open perch above a mesquite bush; remained quiet, evidently watching observer, for several minutes; gave loud call note and came nearer but was not longer in clear view; made another move that brought it still nearer, but was not in view, called; lost; doubtfully another near when this one first seen. Palm Spring, Riverside Co., Calif. Dec. 28, 1933 11:25 One seen in mesquite of vacant lot near south edge of town; presumably eating mistletoe berries though not actually seen doing so. West base of Castle Dome, Yuma Co., Arizona Jan. 9, 1934 4:30 In dry wash on mesa at base of foot hills of range, scattered creosote, mesquite, tree and cholla cactus. 1ft from perched in bear twig at top of mesquite bush, above green part; went down into brush as I approached; as I waited came into top again; gave call note just before this; preened as perched, frequently reached to region of green gland; worked on feathers of breast briefly; flew away to east, may have been caused by movement of observer. In 5 mins. male presumably same one flew into some bush, called a few times; was down in middle of bush out of sight. Melton, 280 ft. Yuma Co., Ariz Jan. 11, 1934 two seen along road from Castle Dome through O one to Melton, and at Melton; single individuals.

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Erichson 1934 2 Chinopepla nitens lepida Bates Well, Luna Co., Ariz. Jan. 23, 1934 4 or 5 individual, or more seen in mesquite near tanks, both sexes. Quintobquito, Luna Co., Ariz. Jan. 24, 1934 Commonest bird seen in wash east of Quintobquito; several frequently perched in tops of tree giving harsh call usually only one in a tree but others nearby; several times saw one male fly at another perched; one perched usually gave up position; birds seemed frequently several times to come into part where I had stopped and set up calls. Bates Well, Luna Co., Ariz. Feb. 3, 1934 One of commonest birds in region.

Erickson 1934 Lanius l. excubitorides Road to Laguna Dam and Sotol, Imperial Co., Calif. Jan. 1, 1934. Individuals common on fences and wires, two individuals taken, with one exception always seen singly; in one case two within 3 feet of each other on telephone wire. One of individual shot only wounded; fluttered off ahead of me across field; when caught held to gloved finger deter[illegible] with bill. Road to Sadeen from Yuma, Yuma Co., Arizona Jan. 5, 1934 Shrikes very common along road, twice saw two evidently paired; within 6 feet of each other on wires, about 25 individuals noted; one collected. 6.5 mi. N of Fort Yuma, Imperial Co., Calif. Jan. 7, 1934 Single individual seen on wire along canal near sandy stretch and native brush, though cultivated fields near; taken as specimen. Jan. 8, 1934 Single individual in dry wash cut thru mesa, perching on Catclaw and Palo Verde trees, taken as specimen. Castle Dome-Welton road, Yuma Co., Ariz. Jan. 11, 1934 Two individuals seen at widely separated points as drove along the road. 12 mi. SW of Welton on Tinajas Altas road. Jan. 12, 1934 Single individual flew over as driving along road. Welton-Lake Bend road. Jan. 22, 1934 Two individuals observed using telephone wire as perch.

Ereckson 1934 2 Lanius L. excubitons. Quitobaquito, Pima Co., Ariz. Jan. 24, 1934. One seen in salt bush area in wash about 1 mi. east of Quitobaquito; used top of dead stick as perch, perch 3 ft. high; flew to ground 6 ft away and back to perch; started to shoot it; but gun failed to work; when it fixed couldn't spot bird for sometime; finally seen on same perch; evidently had been there continuously, but blended with background; shot at it, it remained on perch 5 or 10 seconds after shot was fired, then flew 100 yds. or more across bush; lost. Quitobaquito Jan. 27, 1934 One on mesa north of camp; perched on top of giant cactus 20-25 ft. high; collected. Bates Well, 1385 ft., Pima Co., Ariz. Feb. 2, 1934 12:00 - One perched in top of small cactlaw bush at edge of wash; perch 7ft. above ground; collected. Sila Bend, Feb. 6, 1934 On highway to Yuma within 10 miles of bend saw two pairs perched on telephone wires. Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 16, 1934. One seen near pool at ranch, flew into tree uttering harsh note at regular intervals; collected; shortly afterword saw body of song sparrow impaled on branch of the mesquite 10 ft. above the ground, head and wing gone. A half hour before I had shot at a long sparrow, it appeared to be hit but flew off and was lost, in direction where shribe was taken.

Evechson 1934. Lanius l. excubitoride Parker, 440 ft., Yuma Co. Ariz . Feb. 25, 1934. thrushes observed on telephone wires along roads several times; usually two together.

Crickshaw 1934 Dendroica a. auduboni Imi, above Laguna Dam, Imperial Co., Calif. Jan. 1, 1934 Two individuals seen foraging from tules and dead mesquite stubs out in slough; used flycatcher method of securing food most of the time, perching and flying out after insects; occasionally hovered near tules; plumage: yellow on throat distinct, also on sides and rump, not seen on crown; though chance not good. Same Jan. 3, 1934 Seen in same place yesterday and to-day behavior similar; were not seen at other parts of slough in vicinity; seem to spend most of time in relatively small area 50 ft. from edge of shore of slough. Harrisburg, 1765 ft., Yuma Co., Feb. 16, 1934. 6 or more individuals seen near pond of B[illegible] ranch; used fine wires surrounding and one crossing pond as perches, flying over and down to the water in flycatcher fashion for insects, mingled with and indifferent to Mountain Bluebirds occupied in same behaving in similar manner. One of individuals observed closely had no yellow- mark on crown though other four spots of yellow conspicuous.

Ericson, M. M. 1933 Passer domesticus domesticus Palm Springs, 452 ft. Riverside Co. Calif. Dec. 28, 1933 11:30 - Flock of 10-20 seen in meagule of vacant lots in south part of town. Solares, Imperial Co., Calif., Jan. 2, 1934 3:00 Flock of about 10 seen in brush near group of building. Ajo, Pima Co., Ariz., Jan. 23, 1934 8:30 a.m. Numbers of individuals seen near park and around main group of store building which have tile roofs.

M.M. Erickson, 1934 yuma But yuma. Agelaius phoeniceus sonorensis Laguna Dam road, 7 mi. NE of Yuma, Imperial Co., Calif. Jan. 2, 1934 7:50. as sun came high enough to strike top of tules, o's here and there in them began singing; in a few minutes began leaving the tules, singly or in small groups; in 10 minutes only a few of any individuals left in tules, some flocks on telephone wires others flying. Flocks all red wings and all males as far as observed. 9:00 about a mile farther on toward dam to a small flock - 20, of 7 red wings. A small patch of tules near the road at this point. Flock of males bigger, 200 or more. Lone Jan. 3, 1934 Watched birds at same tule patch from 8:00 to 9:30. Flock entirely of males and all red wings. Groups of 20 - 50 roosted on telephone wires and small shrubs near the road; mostly on wires; flew off across fields to forage, then back again in a short time. Took two specimens. Laguna Dam road, 9 mi. NE of Yuma, Imperial Co., Calif. Jan. 6, 1934 Small flock of 25 seen on telephone wires, mostly females, but a few males; one reflected and then a second as a few came back to roost after first shot. Sloughs above Laguna Dam, Imperial Co., Calif. Jan. 7, 1934. A few individuals flew up from tules of lake as worked thru them.

Erickson 1934. 2 Agelaius p. sonorciensis Blythe, Riverside Co., Calif. March 1, 1934 Large number of individuals heard in song at NE. edge of town.

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Erickson, M. M. 1934 Molothrus ater obseurus 5 mi. N of Fort Yuma, Imperial Co., Calif. Jan. 8, 1934. 9:45- a flock seen in saltclaw bush beside a flock have been seen in this corral of horses; as a small tree across the road. same bush, several times during the past two day; but only early in the morning or in afternoon from about 3 o'clock an. Flock of about 25 individuals, equal number of each sex, approximately; shot at group in bush; rest circled, finally alighted in tree near shack; took a total of ten; man at shack said they lived ate maize planted; crops contained seeds of what was caper corn. Barker, 440 ft., Yuma Co., Ariz. Feb. 21, 1934. Flock seen in trees near ranch house about 3 mi. south of Barker

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Erickson, 1933 1934 Pipilo fuscus (crissalis?) California Towhee Palm Canyon, Riverside Co., Calif. Dec. 27, 1933. 8:30. A single individual seen on ground under low growth of mesquite, above stream fifteen-twenty feet; first seen sneaking low through bushes; then seen scratching near root; used both feet simultaneously scratched, looked for food, scratched, looked again; crissum reddish brown; rest of body plain brown; no calls given; only one individual seen although looked sometime for another. Yuma, Yuma Co., Arizona Jan. 7, 1934 5:30 p.m. Two individuals seen in a nail bush on Calif. side about 7 mi. north of Fort Yuma, at edge of sandy wash along canal. Kelton, 280 ft. Yuma Co., Arizona Jan. 11, 1934 6:00 p.m. A ne seen momentarily in brush along fence; giving chip call; went down into brush as I approached.

Erickson 1934. Dipilo fuscus mesoleucus Bates Well, Pima Co., Ariz. Feb. 2, 1934. One collected from perch in mesquite thicket along wash; no other found in immediate vicinity; on previous days have been heard or glimpsed in brush along wash.

Crickson 1934 233 Amphisiga nevadensis nevadensis Tule Tank, 1250 ft. Yuma Co., Ariz. Jan. 20, 1934. seen at edge of brush at mouth of canyon, on ground foraging; collected; one which seemed to have same markings from brief glimpse was seen yesterday in brush at about same point; no others located though brush watched for a half hour and at intervals during day.

Erickson 1934. Amphispiza bilineata desortcola Nest base of Castle Dome, Yuma Co., Arizona. Jan. 10, 1934. a flock of 5+ seen in creosote and mesquite at base of small hill near buildings; flew into dense brush; slow, as I approached. after 5 mins. two seen on ground foraging; as I moved flock lifted clump an flew down gully, moving 15 yds all told but from bush to bush; two perched in last end of this bush row; perched quietly, eyeing me, several minutes, then took off and flew 50-70 through open to nearly other scattered creosote bushes; two others followed; a fifth still in bushes followed others after about 2 min. A nitobaguito, Pima Co., Ariz. Jan. 26, 1934. a number of individuals seen on mead north of spring. Barquahala Mts; 3000 ft. Yuma Co., Ariz. Feb. 15, one collected from flock foraging in brush along wash. Chrenburg, 288 ft., Yuma Co., Ariz. Feb. 21. flock seen in gravel hills of meza 3 mi. south of Ehrenbry, foraged on ground under creosote bushes, of 6+ only one in adult plumage. 1/2 mi. east of Quartzsite, Yuma Co., Ariz. Feb. 27. one singing, flock in vicinity; other so far as seen indifferent to song.

M.M. Erickson 1933 Palm Springs Junco Chino Cañon, Riverside Co., Calif. Dec. 30, 1931. 11:00 a single individual seen foraging ground under and at edge of isolated mesquite bush; short grass in this region; taken as a specimen; only Junco seen in cañon.

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Erickson 1934 131 Margella breveribrevereri 1 mi. below Laguna Dam, Imperial Co., Calif. Jan. 1, 1934. Flock seen in dry wash, on west side of canal, were in bushes, flew out of sight; located again; flew from ground into bushes: one collected.

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M. M. Erickson, 1933 Zonotrichia leucophrys gambeli Palm Springs, Riverside Co., Calif. Dec. 28, 1933. 11:20 - A flock of 6-10 seen in mesquite bushes of vacant lots in south part of town. Yuma, Arizona. Jan. 8, 1934 Flocks of Gambel Sparrows have been noted frequently during the past eight days, in brush along roadside or near houses, and in more open country, in quail bush, Yuma Co., Melton, Arizona. Jan. 11, 1934. Flock seen in brush near auto camp on east edge of town. Tule Tank, 1250 ft., Yuma Co., Ariz. Jan. 21, 1934. 8:00 a.m. Two seen in brush near mouth of canyon foraging on open ground; may have been others in band. Quintobaquito, Pima Co., Ariz. Jan. 25, 1934 9:00 a.m. A flock of 6 or more seen in thicket around seepage east of main spring; also seen in wash by camp. Katie Well, 1385 ft., Pima Co., Ariz. Feb. 3, 1934 Gambel Sparrows common in wash; in flocks of 10+ + - ; seen frequently during time spent at well. 1 mi. east of Bofago Well. Feb. 5, 1934 A single individual seen frequently about camp during the day; ate bacon rind scrap, was very tame coming to within a few feet of us; was still present on morning of 6th as we packed; no other individuals noted.

Erickson 1934 Ehrenburg Inatecteler Verdin. Robin Shrike Raven Jay, Ash-Throated Flycatcher Thrasher, Brown. Woodpecker, sp.? Red-tail Hawk Swallows, sp.?

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Erickson 1934 Harrisburg Western Robin Mountain Bluebird Audubon Warbler Chipping Sparrow Sambel Sparrow Calif. Linnel Cassin Purple Finch Horned Lark Say Phoebe Meadow-Lark Shrike Long Sparrow, sp. Dove, sp. Gambel Quail Red-shafted Flicker Lila Woodpecker Orpit Killdeer Jack Knife Ducks, sp.

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Ericsson 1934 Harrisburg Western Robin Mountain Bluebird Audubon Warbler Chipping Sparrow Sabel Sparrow Calif. Linnel Cassin Purple Finch Horned Lark Say Phoebe Meadow-lark Shrike Long Sparrow, sp? Dove, sp? Sambel G-nail Red-shafted Flicker Kila Woodpecker Pygit Killdeer Jack Snipe Ducks, sp?

Erickson 1934 New River Mourning Dove Red-tailed Hawk Rock Wren Canyon Wren Phainopepla Cactus Wren Sage Thrasher Linnet? Isabel Sparrow. Western Robin. Hilda Woodpecker

Erickson 1934 Batis Well. Plainpepler Western Robin Gilded Flicker Zila Woodpecker Verdin Western Gnatcatcher. Gambel Sparrow Sage Thrasher Crissal Thrasher Cactus Wren Rock Wren Canyon Wren Lay Shrike Shrike Mockingbird Ruby-crowned Kinglet Canyon Towhee Call, Linnet. American Baren Red-naped Sapsucker Desert Quail Hawk, sp.?

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Eriksen 1934 La Bay Slough. Black Phoebe Horned Owl Western Robin Ash-throated Flycatcher Jack Snipe Kelleher Isabel Rail Cooper Hawk Marsh Hawk Sila Woodpecker Red-shafted Flicker Red-naped Sapsucker Mallard Duck Chainspida Hnatcatcher, sp? Long Sparrow, sp. Thresh Men

Erickson 1934, Antobaquinto Screw-eyed teal Coot Calif. Linnit Crossbill Thrasher Lute Woodpecker Desert Amail Ruby-crowned Kinglet Brown Towhee Gambel Sparrow Western Scratcher Verdin Phainopepla Shrike Rock Wren Sage Thrasher Harris Hawk Scaled Flicker Cactus Wren Mockingbird Woodpecker, sp.? Western Robin.

Erichson 1934 Dipistrellus Bates Well, Pima Co., Ariz. Feb. 2, 1934 shot shortly after sunset as was foraging over mesquite trees of wash.

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Crickson 1934 Ammospermophilus l. xericola Tinjias Altas, Yuma Co., Arizona. Jan. 12, 1934. Individual seen scampering away into rocks as I approached. Tinjias Altas, Jan. 15, 1934 10:00 heard scolding; as I approached finally located it 50 ft. as it moved to top of rock well up on side of mountain near tanks; an top of rock sat upright; motionless; finally lost it and could not pick it up again. Species of 13th taken in wash near tanks; one on large rock strewn with debris from mesquite above it; other on opposite side of wash 75 ft. away on debris strewn ground under a mesquite. 2:00 One on floor of canyon among Encelia farinosa burro weed and creosote; scampered to rock, climbed on it sat on haunches, front feet on rock; a quick nervous shake of tail given frequently; followed for 75 ft. before lost went toward rocks at base of mountains. Tinjias Altas, Jan. 16, 1934 Male taken in sand at bottom of small gully under creosote bush. Female taken under shelthing rock, both in canyon along S E facing slope; traps out about two hours; two others had bait removed, but were not sprung, one under Encelia farinosa on flat not touched. Tule Tank, 1250 ft., Yuma Co., Ariz, Jan. 18, 1934 One seen on rock slide above the tank, N E facing slope.

Erickson 1934 2. Ammospermophilus leucurus Q Intobaguito, Pima Co., Ariz. Jan. 25, 1934. 8:30- Followed up trill that has been heard at Tingajas Altas and Tule Tank and found four of these squirrels on flat south of wash; covered with Atriplex and occasional giant cacti, cholla, ironwood. When first seen two were chasing around and up on to fallen bran trunk of large cholla; later seen to run up to top of dead standing trunk about 7 ft. high; also seen to run & into holes in mound; soil fine dust; mound much turned into garr-sun caved in in several places under my weight. Trill given by one sitting on branches was half with fore feet on ground; later by one sitting erect. Trill gave place to series of sharp chips when one chased another. Set traps near these holes; took one, a female with six embryos, 11 mm. long; three in each horn of the utero, field no. 243.

Enchson 1934 Thomomys bottae Bates Well, Pima Co., Ariz. Jan. 31, 1934. Took 6 individuals from 8 settings made, one untouched, one filled in. Rest one filled in and set two others. Mounds found under mesquite thickets along washes rarely in openings; although two sets of workings were found at the base of lava hills where vegetation of [illegible] predominated. Fresh mounds all found in vicinity of old mounds. Took one gopher from set that had been filled in. Bates Well Feb. 1, 1934. Took up two remaining settings, one gopher taken, other set 15 yds. from place where a gopher secured, probably same system. Setting from which traps taken on previous night filled in.

Crickson 1934 Thomomya b. chrysonotus. Ehrenburg, 288 ft. Yuma Co., Ariz. Feb. 20, 1934. Two individuals taken from seven settings made; five untouched. Settings made in gravel hills and sandy draw between them 3 mi. south of Ehrenburg and directly south of a broad wash. Specimen no. 389 taken from system of mounds near base of west side of coarse gravel ridge in sand with some small pebbles below surface. Creosote and Burrow weed commonest plants, a few small Palo verde trees and rat tail cactus near. Mounds about 100 yds. far and 25 ft. higher than willow association of Colorado River which comes directly to base of mesa at this point. Specimen no. 390 taken from system of mounds a mile free east of river bottom country on north east slope of ridge that rises directly from broad wash, surface soil coarse gravel cemented with sand, sand predominating below surface, only a few small bushes of creosote and burrow weed near. Mounds along two shallow draws; 33 in number, within an area of 15 sq. yds., mostly recently made and of large size, estimated 6-8 qts. of sand in each. Both males, testes enlarged. Made ten more settings in same general region; 1 in system from which no. 390 taken, and 6 in sandy draw about 100 yds. from bottom land, 3 in mounds within 25 yds. of place no. 389 secured. Ehrenburg, Feb. 21, 1934 Took 4 from setting near middle of sandy draw, and

Erickson 1934 2 Thomops b. chrysopterus near center of 40+ mounds located in an area about 100 x 75 yds. 4 other settings at fresh mounds on border of this region untouched. Female sexually mature. One setting near west base of ridge had evidently trapped a gopher, but traps pulled out; one put still set found 30 yds. from hole by following track where it had dragged in sand; at this point wire connecting two evidently pulled out; no trace of other trap; sand too soft to give distinct tracks but coyote or fox probably responsible; hole was not dug out more than when set was made. Sets made where two taken on 20th untouched. Mounds where no. 389 and 4 391 taken seem too extensive to represent work of one animal, but failure to secure other individual at fresh mounds suggests they were only occupants. 8.5 mi. 4.3 mi. north of Ehrenberg, Yuma Co., Ariz. March 1, 1934 8.5 mi. north of Ehrenberg on east side of La Pay though found a few fresh gopher workings under open mesquite stand with salt grass covering ground and in one place open growth of arrowweed. Made three setting, two in clay soil one in random Feb. 20. Took one, in gopher sandy soil near arrowweed; other two untouched; rocky hills of mesa about 1 mi. to east of this point. 4.3 mi. north of Ehrenberg gopher working had been found and setting made on 20th. These mounds in still more open mesquite stand with large areas of saltgrass and

Erickson 1934 Ehrenberg 3 Thomomys b. chrysonotus arrowweed near, soil sandy. At one point in area observed, spur of mesa extending into mesquite association; bofher workings found on this stony ridge, but were not as abundant as on flat; no traps set on this ridge. From 4 traps set on 28th, took two individuals; one had a leafy section of arrowweed stem extending 30 mm. out of cheek pouch, extending beyond nose. Made 15 more settings, left one of those of 28th. Late afternoon took 6 more individuals, and one setting pulled into hole, reset one trap in which young individual secured. 4.3 mi. north of Ehrenberg March 2, 1934 A single individual taken from setting left.

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Erickson 1934 Thomomys bottae 2 mi. south of Barker, 350 ft. Yuma Co., Ariz. Feb. 22, 1934. From seven settings made in morning took 6 gophers in late afternoon; all of settings made in salt grass fields of vicinity; specimen no. 393 had a single cube of salt grass root in cheek pouch; no. 398 had a root 1 inch long and 1/2 in. in diameter. 2 mi. south of Barker. Feb. 23, 1934 Two specimens taken from 4 settings made, one filled in. Settings in salt grass fields which at some time have been irrigated, but not recently soil dry as far as down as settings made. 2 mi. south of Barker. Feb. 24, 1934. Thirteen specimens taken from as many setting in field once planted to cotton now covered with saltgrass. One setting filled in, in another a male and female secured, nos. 402 and 403.

[illegible]

Erichson 1934 Perognathus baileyi domensis West base of Castle Dome, Yuma Co., Ariz. Jan. 10, 1934. A male taken on mesa between two of isolated hills at base of dome; soil finer at this point than on much of mesa; taken under a creosote bush; a Dipodomys m. taken within five feet, and another within 25 ft.; giant cactus and goat nut other brush plants common in region.

Erickson 1934 Perognathus baileyi New River Valley 30 mi. N. of Phoenix, 1650 ft., Maricopa Co., Ariz. Feb. 11, 1934. No. 332 taken on hard packed gravel of mesa; trap set on small mound at mouth of hole; mound of fine soil in contrast to surrounding surface, very old; doubtful if mouse using this particular hole though position in trap suggested this possibility; vegetation creosote and at some distance palo verde and giant cactus. New River Valley. Feb. 12, 1934. Two more individuals secured on coarse hard packed sand at base of granite hill. Traps set near holes in open.

Ereclsson 1934 Perognathus intermedius 9 mi. east of Supago Well, 1100 ft. Pima Co., Ariz. Feb. 4, 1934 no 291 taken on SE slope of granite hill near base; trap near hole in fine hard packed gravel area between rocks. Two others no. 287 and 290 taken near top of hill at similar places. New River Valley 30 mi. N. of Phoenix, 1650 ft. Maricopa Co., Ariz. Feb. 11, 1934. no. 331 taken on N slope of granite hill near base, soil fine hard packed coarse sand cemented, large rocks and fractured outcrops near. New River Valley Feb. 12. no. 347 taken on hard packed gravel surface of mesa; trap near a small group of rocks covering are of a square foot and offering crevices to hide in. A Perognathus baileyi taken within 5 ft. of place on previous night. Nos. 346-348 taken on N and east slopes of same granite hill as on Feb. 11; location similar. New River Valley. Feb. 13. no. 356 taken at base of Mt. Ochoa, trap beside rock, soil hard packed coarse sand formed apparently by weathering of hill, large rocks numerous. no. 357 taken well up on side of Mt. Ochoa, slope rock strewn ground same. 10 mi. east of Quartzite, Yuma Co., Ariz. Feb. 27. no. 419 taken on hard packed gravel of mesa forming bank of small wash, vegetation creosote, and cactus of several kinds, palo verde and ironwood along wash; break of lava hill across wash. no. 420 taken on lava hill 50 ft. above mesa.

Erichson 1934. Dipodomys deserti. 9 mi. east of Papago Mill, 1100 ft., Pima Co., Ariz. Feb. 4. No. 300 taken at entrance to burrow on fine sandy mesa near creosote bush, four other large burrows in mound nearby. 2 Dipodomys merriami taken in traps near them.

Crickson 1934 Dipodomys merriami West base of Castle Dome, Yuma Co., Ariz. Jan. 10, 1934 A male and a female taken within 25 ft. of each other on mesa near giant cactus, creosote and goat nut bushes, a Perognathus baylgi Taken within 5 ft. of one; soil somewhat finer at this point than on most of mesa. West base of Castle Dome. Jan. 11, 1934 Another individual taken under creosote bush, on mesa. Welter, Yuma Co., Arizona Jan. 12, 1934. One individual taken on sandy soil at NE edge of town; tracks numerous on this soil near where specimen taken; Tinajos Altas, Yuma Co., Arizona. Jan. 17, 1934 One individual taken in 35 traps placed on mesa about 100 ft. from base of mountains, in shallow gully; soil coarse sand, almost fine gravel, rocky over much of area.

Erickson 1934. Tinajoso 1 Peromyscus crinatus Tinajas Altas, Yuma Co., Ariz. Jan. 13, 1934. a single individual, F, specimen no. 181, taken at an elevation of 1300 ft.; the height of traps set out for night. Taken on NE facing rocky slope in one of rock strewn gullies between solid though eroded rock ridges. Taken under a sheltering rock, [illegible], which with others formed a small cave; some loose soil but mostly rocks; two clumps of a small woolly fern = Notholaena barzi under rock. Vegetation in region, ocotillo, Palo verde, yucca, and 4 other bushy kinds of plants. Tinajas Altas Jan. 14, 1934 6 specimens, presumably, referable to this species secured. Nos 187, 188, in locations slightly higher in gully, but in very similar conditi. locations; (under sheltering rocks, ferns present), to one taken on 13th. No. 189 taken at lower end of steep narrow - 3-6 ft. wide rock slide, under a bushi., a little soil and many small rocks in vicinity. No. 190. taken at top of slide from whil 189 secured, no traps between these two elevations; on narrow sloping ledge between in long steep rocky slope facing almost due N. Trap set between rocks; no loose soil near crest of range, or plants near. No. 191 taken on rock strewn slope below- base of highest peaks of range, under bee sage bush, hole between two rocks within a few feet of trap. No evidence of breeding in any of specimens taken. All specimens Jan. 13 and 14 taken in same draw of NE facing slope at south of tanks.

[illegible]

Erickson 1934 Peromyscus crinitus Tule Tank, 1250 ft. Yuma Co., Ariz. Jan. 19, 1934 Eight individuals taken on rocky slope on north east facing slope above tank; three on rock surface going straight up slope, rest on wide sloping surface below crest of ridge; much weathered granite, many loose stones, plants about same as at Tinguas Altos. Specimen no. 224 taken 25 ft. up from floor of canyon in creviced rocks, on small area of coarse gravel under shrubs; loose rocks about 7 ft. distant. Another specimen taken 12 ft. directly above last time. This one a female taken in trap set at hole into rocks; front part 3 inches across each way; two smaller holes opened off this about 10 inches back under rocks; specimen still alive; saved by warming up in pocket; was caught by tail only. Specimen 223. Taken at top of steep loose rock draw on small fine gravel area under a palo verde along trail at base of rock extending 3-4 inches above it; hole, about a foot and a half higher on slope, 36 mm. high, 54 mm. across; leads back under loose rocks and to crevices of granite base. Still alive squeaked "quick" repeatedly; did not right itself when released from trap; leg injured; killed. Specimen 222, ?, taken 30 ft. from last at base of small shrub, no holes near. Specimen 221, ?, taken 50 ft. farther along on slope under stout stemmed bush, in nest between rock and trunk; no holes near. No. 220, ?, taken 75-100 ft. from last in fresh rock slide across weathered granite slope; holes under rocks within a few feet.

Crickaon 1934 3 Peromyscus crinatus Specimen 219, ?, 100 or more feet from last; over small hump; at top of steep rock slope; trap in run between rock and bush; no definite hole near but many rock crevices; testes enlarging. Specimen 218, ? taken twenty feet from last on flat 2 x 1ft. between solid rock and trunk of stout stemmed plant; a few sheep dropping on coarse sand where trap set; testes very large. Tule Tank Jan. 20, 1934. Specimen caught alive and saved yesterday revived and was lively during afternoon; but died during night; was put in box with cotton, but failed to make any attempt to use it. When weighed yesterday stood on platform of scales; thrusting nose over edge; vibrissae twitched back and forth slightly; when attempted to lift it fell off scales; recovered; at no time made any attempt to bite. Took four specimens in traps on south west facing slope of canyon 800 ft. below tank in traps up steep rock female. slope and ledge on side of ridge east of tank; one, taken on flat space between large boulders; stout red barked bush near. no. 230 Caught by nose, eaten by ants; not saved. One, a male, caught by tail and hind leg; on flat-ledge 100 ft. above mesa; large boulders on much weathered granite; not saved; measurements 179-108-20-21, nos., 9-60g. Specimen 237, still alive; caught by tail; trap on small flat area beside large rocks; bushy- plant, with holly like leaves near.

Crishan 1934 Bivomyzas crenatus. A female taken 25-ft. higher on ledge and 100 ft. from last. in a run between and protected on all side, but above by large rocks; no plants nearer than 6 ft.; still alive. Tule Tank Jan. 28, 1934. Male taken yesterday, escaped from pocket during morning, was found running around camp and caught; both died during night; made no attempt to build nest with cotton. ♂ had injured leg; not saved, measurements 179-108-20-21; wt. (left) 9.60g.; ♀ male made no. 238, seems to have only one horn to stern Took two individuals in traps set along NE wall of canyon with tank. A female, no. 236., twenty-five feet up on slope from canyon floor in trap under low palo verde bush from which bark had been eaten. A male, no 237, taken in narrow run between two rocks set on end, flat large hole at top; cuttings of palo verde numerous, these last presumably made by wood rat; two other traps set in same region unsprung.

[illegible]

Erichson 1934 Peromyscus crinitus 10 mi. east of Quartzsite, Yuma Co., Ariz. Feb. 28, 1934. Two specimens taken on east facing slope of lava hill on ridge covered with finely shattered rock, a few large lava rocks on it, traps near twelve, two other traps in same area untouched; two taken, nos. 426 and 428, were within 25 ft. of each other; vegetation occasional creosote, palo verde and Encelia bushes.

[illegible]

Crickson. 1933 1934 Peromyscus eremicus Palm Springs, Riverside Co., Calif. Dec. 28, 1933 Caught two in sandy wash at base of mountains. one still alive, escaped; ran to bushes 15 ft. away; saw line, but lost before it was within reach. West base of Castle Dome, Yuma Co., Ariz. Jan. 10, 1934 no. 172 taken at top of rocky hill standing apart but near base of main range; trap between rocks. West base of Castle Dome. Jan. 11, 1934 a σ, no. 177, taken at base of rocky hill at point where wash comes to base; under sheltering ledge of rock, hole coming out from between and under rocks. a φ, no. 176, taken at top of same hill as above, at opposite end, about 150 feet distant; mouse evidently caught as ran along trail at base of 4-5 inch rock wall to hole which was under shelter of jutting rock; next to traps of line spring; other 12 on hill untouched; no embryos. Tinajas Altas, Yuma Co., Ariz. Jan. 13, 1934 5 specimens taken, from wash at base of steep rock strewn slope to an elevation of 1300 ft., as high as traps set. one at edge of sandy wash - 6 ft wide, which carries away overflow of tanks, at time of rains; another where mesa comes to base of rocks and others on rocks of shallow draw or gully on NE facing slope. at south of tanks. Tinajas Altas Jan. 16, 1934 a male taken at elevation of 1350 ft. at lower end

Creekerson 1934 Peromyscus eremicus of a steep gully on NE facing slope, caught in a run under two rocks which formed a tunnel; only specimen caught though 36 other traps set in similar locations in same gully; it very narrow toward top 3-5 ft. Tinajas Altas. Jan. 17, 1934 5 individuals, 4 males, 1 female trapped on mesa at base of mountain; 1/4 mile SE of tanks. four of them near loose rocks at base, other 100 ft out on mesa in shallow gully. [illegible] Male and female taken in traps within 6 ft. of each other, female mature, without embryos; two of males with enlarged testis.

Erickson 1934. testoma albigula West base of Castle Dome, 1400 ft. Yuma Co., Ariz. Jan. 11. No. 175 taken under goatnut bush along edge of small gully on mesa; no house located in radius of 50 ft., one observed 100 ft. or more distant along same gully. Bates Mill, Pima Co., Ariz. Jan. 30. No. 262 taken in trap set on run from small house at side of small gully on mesa, house built mostly of cholla joints around a branching deer horn cholla; palo verde and creosote bushes near and extend over cactus to some extent. Bates Mill, Jan. 31. No. 272 taken between 8 a. m. and 5 p. m. in trap set in runway from rat house on lava hill N.E. of Mill; from position in trap was probably returning to house. House large pile of sticks and cholla joints in spaces of lava slide. 1 mi. east of Colago Mill, 1100 ft. Pima Co. Ariz. Feb. 5, No. 307 taken on crest of small granite hill near house of sticks and cholla joints built in rocks, no other individual secured at 6 other rat houses along sides of hill. Barker, 350 ft., Yuma Co., Ariz. Feb. 24. No. 415 taken in dry tule filled ditch 5 mi. south of Barker, cultivated field on one side, open mesquite stand another.

Erickson 1934 Restoma lepidula Tinajas Altas, Yuma Co., Arizona. Jan. 14, 1934 One individual, no. 193, taken at 1640 ft., on narrow sloping ledge of steep rock ridge under bush, common in region, and bark, leaves smaller but of mesquite type. No sign in region, no evidence of house or attempt at one, but crevices back into rocks nearby. Tinajas Altas Jan. 17, 1934 2 taken in medium sized trap set on flat at base of mountains ¼ mi. south and east of tanks; trap under a creosote bush, 15 ft. from base of mountains which rise steeply; but have much of it shear rock, but some rock fragments or narrow rock slide coming down to floor mesa opposite point not was taken. Tule Tank, 1250 ft., Yuma Co., Ariz. Jan. 19, 1934 No. 225 taken in medium sized trap set in 1ft sq. sandy area near base of hill, crevices in granite rocks near but seem small for size of animal. Tule Tank, Jan. 20. No. 233 taken in trap set under sheltering rock numerous palo verde cuttings and fresh sign in vicinity and palo verde tree with bark peeled and dumped out. Traps at similar place 12 ft. below and 25 ft. above untouched. One higher on slope likewise untouched. Tule Tank Jan. 21. No. 235 taken on rocky slope of canyon in which

[illegible]

Erickson 1934 2 Neotoma lepida Tank located, trap under rocks forming protecting roof, cuttings and droppings present; no other rats taken in traps set at similar locations along canyon side, one trap set in runway in crevice, stolen; Desmopimus in two others set in runways in which floor littered with cuttings and droppings. New River Valley, 30 mi. N. of Phoenix, 1675 ft. Maricopa Co., Ariz. Feb. 11. No. 33 taken on east side of small much fractured and weathered granite hill, many large boulders near but no evidence of house in immediate vicinity, cuttings and sign found under rocks at other points on hill. 10 mi. east of Quartzsite, Yuma Co., Ariz. Feb. 27. Two individuals taken in traps set among rocks on east side of lava hill; no houses found in immediate vicinity, two taken at widely separated points.

Erichson 1934. nestoma auripila 9 mi. east of Papago Well, 1100 ft., Pima Co., Ariz. Feb. 4. No. 292 taken at lower end of rock slide, near palo verde tree from which bark eaten and twig cut. Cutting under rocks of slide. Tail broken off some time in past, healed at time trapped. Rat house of type used by N. altigula 25 ft. below point where these specimen taken. No. 293 taken on trail running along rocky ledge. Trail comes from top of rat house formed of an accumulation of sticks and cholla joints in crevices of rocks; 3 other traps near untouched. No. 294 taken under palo verde tree, a few old cuttings scattered on coarse gravel surface, some small rocks near; cuttings numerous under rock slide 25 ft. higher up on slope. 6 houses of type described found on hill on which traps set.

North Coast Counties, Calif. May-June, 1935

Erickson, Jr., M. 1935 North coast counties, Calif. 20 pp. May 28 - June 23, 1935 #445 - 573 Specimens collected belong to Accession 4703, and are included in Mammal Cat. # Rept & amp. Cat. #

Erickson 1935 Carlotta, Humboldt Co., 4.5 miles east of Carlotta 4 embryos. 445 ♀ Thomomys bottae 194-50-25-5, 104.5g. May 27. 4 miles west of Carlotta skin only 446 ♀ " " 210-39-27-6. 113.9g. May 30. 447 ♂ " " 241-66-28-7.5 171.6g. " 30 \frac{1}{4} mile east of Carlotta 448 ♂ Thomomys bottae 214-60-27-6. 136.2g. May 30 449 ♂ " " " 232-73-30-8. 172.64g. May 31 450 ♂ " " 220-62-28-7. 145.6g. " 31 451 ♀ " " 194-56-26-6. 93.7g. " 31 452 Garter Snake " 31 453 ♀ Thomomys bottae 209-60-27-6 125.0g. " 31. \frac{1}{2} mile south of Fernbridge, south side of Cel River. skull only. 454 ♀ Thomomys bottae 206-68-28-6. 94.8g, June 1 455 ♂ " " 280-89-33-8. 248.65, " 1 1 mile south east of Fernbridge, south side of Cel River. 456 ♀ Thomomys bottae 216-68-29-6. 120.55g. " 1 457 ♀ " " 225-71-28-7, 129.73 g, " 1 458 ♂ " " 239-69-29-7. 199.10g. " 1 459 ♂ " " 274-87-33-7, 234.13g. " 1 \frac{1}{2} mile south of Fernbridge, south side of Cel River. 460 ♀ Thomomys bottae 212-70-26.5-7. 99.2g. " 1 1 mile south east of Fernbridge, south side of Cel River. 461 ♂ Mole 172.5-29-22- 89.2, June 2 6-22mm. embryos, 3 in each horn, " 2 462 ♀ Thomomys bottae 233-81-30-7. 162.0g. " 2 463 ♀ " " 227-72-29-7. 139.05g. " 2 464 ♀ " " 214-68-28-6. 119.35g. " 2 465 ♂ " " 254-76-30-8. 199.5 g. " 2 466 ♀ " " 201-71-28-6 75.8g. " 2

[illegible]

Ereckson 1935 1 mi. southeast of Fernbridge, south side of Cel River 467 \u2640 Thomomys bottae 161-53-27-4. 41.2g. June 2 468 \u2640 " " 180-63-27-5. 70.01g. " 2 \u00bd mi. south of Loleta, north side of Cel River. 469 \u2640 Thomomys bottae 249-75-31-7. 180.0g. June 2 470 \u2640 " " 212-73-28-6. 151.45g. June 3. 471 \u2640 " " 229-69-29-7. 162.0g. " 3. 472 \u2642 " " 210-70-31-6. 120.0g. " 3 473 Garter Snake 34.73g. " 3 \u00bd mile west of Loleta, 474 \u2640 Thomomys bottae 235-76-32-7. 146.28 June 3. 475 \u2642 " " 263-81-34-7. 246.10 " 3 \u00bd mi. south of Loleta, north side of Cel River 476 \u2642 Thomomys bottae 270-79-33-7. 250.7g. June 3. 477 \u2640 " " 206-66-28-7. 104.25g. " 3 478 \u2640 Mole 205-47-26- 140.0g " 3 7 miles north of Crescent City, Del Norte Co, 479 \u2642 Thomomys bottae 229-71-30-6. 164.9g. June 5. 480 \u2642 " " 239-74-32-6. 215.25g. " 5 481 \u2642 " " 253-79-33-6 203.20g. " 5 482 \u2640 " " 205-73-31-6. 113.77g. " 5 483 \u2640 " " 208-66-29-6. 108.50g. " 5 484 \u2642 " " 162-50-28-5. 62.20g. " 5 485 \u2642 " " 220-73-325-6. 127.0g. " 5 2.2 miles north of Fort Dick, north bank of Smith River, Del Norte Co, 486 \u2642 Thomomys bottae 145-45-23-4. 37.25g. " 5 487 \u2640 " " 207-67-29-6. " 5 488 \u2642 " " 238-75-31-6. 177.33g " 5

[illegible] [illegible] [illegible] [illegible] [illegible]

Erickson 1935 2.2 miles north of Fort Dick, north bank of Smith River, Del Norte Co. 489 ♂ Thomomys bottae skull only. 182-60-28-5. 77.5 g. June 5. 7 miles north of Crescent City, Del Norte Co. 490 ♂ Thomomys bottae 254-78-34-7. 241.21 g. June 5. 2.2 miles north of Fort Dick, north bank of Smith River, Del Norte Co., 4 embryos, 2 in each horn, 18 mm. 491 ♀ Thomomys bottae 205-64-28-6. 138.2g. June 6, 3 embryos, 2 in rt. horn, 13 mm. 492 ♀ " " 197-61-28-6. 117.28 g. " 6. 4 embryos, 2 in each horn, 9 mm. 493 ♀ " " 210-67-30-7. 123.36 g. " 6. 494 ♂ " " 233-74-32-6. 170.9 g. " 6. 495 ♂ " " 223-76-32-6. 155.05g. " 6 nursing young 496 ♀ " " 210-64-29-?. 125.10 g. " 6 7 miles north of Crescent City, Del Norte Co., 497 ♂ Thomomys bottae 234-71-32-6. 192.7g. June 6. 1.4 miles north of Fort Dick, south bank of Smith River, Del Norte, no embryos. 498 ♀ Thomomys bottae 224-67-30-5 131.0 g. June 6. 100 yds. south of Calif.-Oregon boundary, 300 yds. from Pacific Ocean, Del Norte, 499 ♂ Thomomys bottae 251-79-34-6 224.7g. June 6. 500 ♂ " " 220-72-31-6. 171.15 g. " 7 nursing young. 501 ♀ " " 214-77-29-6. 121.40g. " 7 no embryos. 502 ♀ " " 210-70-29-6. 110.70 g " 7 1.4 miles north of Fort Dick, south bank Smith River, Del Norte Co., Cal. 5 embryos, 3 in left horn; 10 mm. 503 ♀ Thomomys bottae 199-62-29-6. 130.2 g. June 7 504 ♂ " " 248-72-34-7. 203.7g. " 7 505 ♂ " " 237-74-31-6. 173.8 g " 7 506 ♂ " " 228-70-31-6 162.0 g " 7 4 embryos, 3 in rt. horn, 5 mm. 507 ♀ " " 189-62-29-6. 81.0g. " 7

[illegible]

Erickson 1935 7 miles north of Crescent City, Del Norte Co., Calif. 508 ♂ Thamnophis bottae 239-78-32-6. 146.7 June 7, 509 ♂ " " 219-66-30-6. 155.05 " 7 Wilson Creek, 1 mi. north of Klamath, Del Norte Co., Calif. 510 Garter Snake 38.6g. June 9 511 Garter Snake 41.0g. " 9 512 ♀ Thamnophis bottae no embryos. 137.3g. " 9 513 ♀ " " 4 embryos, 2 in each horn, 13 mm. 220-68-29-6. 147.9g. " 9. 514 ♀ " " no embryos 208-64-29-6. 123.0g " 9 515 ♂ " " 253-80-33-7. 209.2g. " 9 516 ♂ " " 229-71-31-6. 168.3g. " 10 517 ♂ " " 229-73-33-7. 176.7g " 10 518 ♀ " " no embryos 204-64-29-6. 121.1g. " 10 519 ♂ " " 209-66-30-6. 143.95g. " 10 520 ♀ " " 3 embryos, 2 in st. horn, 10 mm! 201-63-29-6. 127.6g. " 11 521 ♂ " " 200-62-30-6. 96.3g. " 11 522 ♂ " " 224-67-29-6, 167.0g. " 11 3 miles west of Beatrice, Humboldt Co., 523 ♀ Thamnophis bottae no embryos 209-65-30-6 98.5g. June 14. 524 ♂ " " 221-72-30-6 156.3g. " 14 525 ♂ " " 236-74-30-6. 159.3g. " 14 526 ♂ " " 218-65-31-6, 153.8g " 14. 527 ♂ " " 247-84-32-6, 178.4g. " 14 528 ♀ " " 214-73-30-6, 117.0g. " 15 529 ♀ " " 211-70-30-7, 122.75g. " 15 530 ♀ " " 212-67-29-7, 121.22g. " 15 531 ♂ - " 217-70-31-7. 138.52g. " 15 532 ♀ " " 2 embryos, 1 in each horn, 19 mm. ♂ 216-72-29-6.5. 137.74g, " 15

Erichson 1935 3 miles west of Beatrice Humboldt Co., Calif., 25 feet. 533 ♂ Thomomys bottae 230-81-31-7. 154.4g. June 15 534 ♂ " " " 224-80-30-6. 151.6g. " 15 1 mile southwest of Ferndale, Humboldt Co., Calif., about 175 ft. no embryos. 535 ♀ Thomomys bottae 217-70-30-6. 144.7g. June 16 7 embryos, 4 in st. horn, 19 mm 536 ♀ " " " 219-68-30-6. 165.0g " 16 537 ♀ " " 220-73-31-6. 148.6g " 16 538 ♂ " " 171-62-29-5. 74.0g. " 16 539 ♂ " " 233-70-32-7. 197.13g " 16 540 ♂ " " 246-79-31-7. 191.14g " 16 541 ♂ " " 258-84-31-7. 222.13g " 16 no embryos. 542 ♀ " " 215-69-30-7 141.6g. " 17 3 embryos, 2 in left horn, 19 mm. 543 ♀ " " 214-72-31-6. 146.05g " 17 no embryos. 544 ♀ " " 223-74-31-6. 132.6g. " 17 545 ♂ " " 223-69-29-5. 161.6g. " 17 546 ♂ " " 236-74-32-6. 177.8g. " 17 Eureka, southwest edge, elevation about 25 ft. no embryos. 547 ♀ Thomomys bottae 219-74-31-7. 105.0g June 18 548 ♂ " " 227-76-33-7. 160.0g. " 18 skull only " " 549 ♀ " 171-60-30-6. 69.5g. " 19 Eureka, 1 miles south of city limits 4 embryos, 3 in left horn, 34 mm. 550 ♀ Thomomys bottae 226-71-33-7. 189.5g. June 19 no embryos 551 ♀ " " 219-70-30-7. 146.13g. " 19 552 ♂ " " 240-83-32-7, 164.0g. " 19 no embryos 553 ♀ " " 201-68-30-6. 90.41g. " 19 3 embryos, 2 in st. horn, 14 mm. 554 ♀ " " 207-66-29-6. 124.0g. " 19 555 ♀ " " 212-67-29-7 118.5g " 20

Erickson 1935 Lamoza, Humboldt Co., elev. 25 ft. 556 ♂ Thomomys bottae 193-69-30-5. 70.0g. June 20 no embryos 557 ♀ " " 236-84-33-8. 152.85g. " 20 558 ♂ " " 230-84-33-7. 124.60g. " 20 shull only 559 ♂ " " 197-71-32-5. 80.0g. " 20 shull only 560 ♂ " " 182-63-29-5' 70.8g " 20 shull only 561 ♂ " " 192-67-30-5. 74.8g. " 20 no embryos 562 ♀ " " 222-85-32-7. 122.75g. " 21 563 ♂ " " 237-82-34-7. 124.85g. " 21 no embryos 564 ♀ " " 236-78-32-6. 139.30g. " 21 no embryos 565 ♀ " " 231-79-31-6. 118.6g. " 21 no embryos 566 ♀ " " 225-78-33-6. 119.0g. " 21 567 ♂ " " 228-78-345-6. 108.6g " 21 no embryos 568 ♀ " " 224-78-34-6. 120.2g " 21 569 ♂ " " 238-85-34-6. 133.16g. " 21 570 ♂ " " 234-82-34-6. 136.6g. " 21 no embryos 571 ♀ " " 232-82-33-6. 131.9g. " 21 3 miles west of Beatrice, Humboldt County. 572 Garter Snake June 21 1/4 mile north of Loleta 573 ♀ 208-72-30-6. 94.5 June 22

[illegible]

Berkeley 1935 Carlotta, Humboldt Co., Calif. May 28, 1935 8:00 a.m. started from Berkeley, followed Redwood Highway to Kott, spent night in auto camp. May 27, Continued trip to Milders at Carlotta, arriving at 9:00 a.m. 10:00 a.m. to 12:30 drove 7.5 miles east of Carlotta. Shot fewer white-crowned sparrows at bridge across Van Duzen River. On return trip outside one gopher set 4.5 miles east of Carlotta, only gopher workings seen; moles common. In afternoon drove from Carlotta to Hydeville and Bohnerville, made two gopher sets in pasture 4 miles west of Carlotta. Took female gopher, # 445, from first set, soil medium gray loam. May 30. Took male and female, in two sets west of Carlotta soil medium gray loam, short grass, at top of low hills back from river Van Duzen River, elevation about 200 ft. Made seven sets 1/4 mi. east of Carlotta; two on floor of valley, rest on first bench about 35-50 feet higher. Soil medium gray loam, little coarse gravel in a few places; vegetation mostly well closely cropped pasture, a few clumps of poison oak, took one young gopher, killed by B. Blanchard, and another ♀ May 31,

Erickson 1935 Carlotta, Humboldt Co. Frembridge and Ferndale May 31. Took four gophers from remaining sets; made three more sets in same general location; took one additional gopher from these; 12:00 noon, moved from the Willders to Fortuna. Established base at Junction Auto Camp, then drove to Frembridge and Ferndale looking for gophers; found many mounds of moles in an aperture in old river bed but no gopher sign. Stopped at farm 1/2 mile south of Frembridge and Cel River, owner Mr. M. D. Petersen reported a few gophers in his carrot field which we could trap; also reported a man who had taken 200 gophers from a ten acre potato patch. Made four sets in carrot field; soil light gray adobe, packs readily. Followed small south side of road along river for 1/2 mile, ended at farm owned by George Hansen, some gophers reported in pastures; no sets made until owner could be located. June 1. Took two gophers from sets at Petersen's; made three sets in pasture land 1/2 mi., south east of Frembridge on south side of Cel River, and six in field planted to carrots and potatoes; soil same type of river bottom land as set in on May 31. In afternoon took six gophers, two young ones from sets in pasture, four adults in others made eight new sets in potato patch. Left sets from which two young were taken.

Erickson 1935 Flembridge and Flemdale June 2. No gophers taken in traps left in barrows; which two young gophers were taken on June 1. Found two fresh mounds in potato patch and made two sets. Took up sets made yesterday. Took a mole, #461, and a gopher, #462, in the same set; gopher dead, mole alive and had pushed trap into open hole dug to make set; took four other gophers, one in set made to-day. Took up all sets. Looked for gopher workings in farm country west and north of Flembridge. Found some in pasture land 1/4 mi. south of Loleta. Owner made eight sets using our traps. Grass, Thistles - two kinds, small yellow clover, chief forms of plants, last introduced by owner; soil gray loam, [illegible] not as fine as on opposite side of river. Made one set in closely grazed pasture .2 miles west of Loleta, and three in freshly sprouting hay field .8 miles west of Loleta. Picked up garter snake on highway 1/4 mile south of Loleta. Late afternoon, took six gophers, from 4 from 8 sets south of Loleta, 2 from 3 sets .8 mile west of Loleta; one .2 miles west filled in, reset. June 3, #476 #477 Took two gophers and a mole, latter in same set with a gopher, gopher dead, mole alive; 1/4 mi. south of Loleta. One .2 miles west of Loleta filled in, other untouched; all taken up. Moved to Bishop Pine Lodge for night. Hunted White-crows west of Beatrice in afternoon; some signs of gophers. Great Blue Heron colony near bay.

Erickson 1935 7 mi. north of Crescent City Del Norte Co., Calif. June 4, Hunted for White-crowned Sparrows first half of morning, then moved on to Redwood Paradise Auto Camp 7 miles north of Crescent City, on Redwood Highway, tried to locate at Smith River but no place available. Auto camp and former adjoning road on ground cleared of redwoods, many old stumps still present; people have small gardens, and hay fields in spaces between stumps. Stand of redwoods on hill but south side. Soil a light reddish brown loam, very crumbly. In evening made nine sets, two at edge of potato patch, 6 in recently cut hay fields, and one in pasture; short grass. "Old timer" set two other single ones in pasture. June 5, 483 Caught gophers in two sets near potato patch, female and small male in one in pasture, three in hay field, ♂ 481 and ♀ 482 at same set; three filled in; two set by "old timer" failed to catch anything. Last part of morning drove to north side of Smith River, 2.2 miles north of Fort Dick, made 8 sets in pasture between Smith River and Redwood Highway. small yellow plants - grass, plantain, yarrow, clover etc.; in swale, rushes, lupine; soil, gray loam near highway, sandy loam nearer river. In digging last set uncovered a runway as follows, floor of 484 about 5 1/2 miles below the surface of the ground; the next cavity contained dry shredded plant fiber, apparently grass and north next almost left.

Erichson 1935 7 mi. north of Crescent City and vicinity Del Norte Co., Calif. and some green bits; leaves of small yellow clover. I started digging at mound shown at left side of page; when I had uncovered burrow about six feet beyond nest; head of small gopher was seen at opening of uncovered burrow; presently gopher came out into what had been run, caught in hands, specimen # 486, runway lost at about point indicated, numerous small old forage mounds at about this point. I'm digging for another set found a similar nest about 1 ½ ft back on a runway, set trap in run leading from nest back into bank; ¼ hour later this was filled in, opened can't and reset. Floor of nest was about 7 inches below the surface. Late afternoon, set touched; took three gophers from remaining sets, two others filled in, those reset and three new sets made. Saw striped skunk foraging in grass and shrubs near river bank; about 7:00 p.m. Miss Blanchard later saw two, potential possible one the same as above. I'm sets near camp, took one gopher, those filled in; three reset and a new set made in hay field. June 6. No gophers taken in 3 sets in hay field at camp; not filled in; made one new set in pea patch. Took five gophers and one mole from sets 2.2 miles north of Fort Dick; two filled in reset, one new set made. Made five sets 1.4 miles north of Fort Dick Redwood Highway, on bank of Smith River. Three of sets in gray loam, vegetation grass 1 to 1½ ft. high, a few trees near; two in gray

Erickson 1935 7 mi. north of Crescent City and vicinity Del Norte Co., Calif. sand in open, short grass and dried up yellow clover. 3;30 p.m. took up sets near auto camp; one in set in pea patch, others touched, looked at sets 1.4 miles north of Fort Dick, took one female in set in loam, drove through Smith River to California - Oregon boundary. Gopher workings abundant in fields on either side of highway. Five sets made. Strip about 200 yds. wide of gray sand back of beach, then rise of 25 ft to flat field, which is succeeded by low hills. Sets made in flat field; soil, chocolate brown loam, slightly reddish, a little gravel; plants - grass, a composite similar to the dandelion, plantain, small yellow and red clovers, cover about 6-10 inches high. On return trip looked at traps 2.2 miles north of Fort Dick; one set filled in, female in one; took up all sets at this location. Night Hawks over head. June 7. Made four settings in hay field and natural pasture near auto camp. Took up sets 1.4 miles north of Fort Dick. Took two in sets in loam, three in two sets in sand, ♂ 504 and ♀ 507 in same set. At California - Oregon boundary set made a new set in gray sand at eastern edge of strip along beach; two gophers taken in original sets, one fille in met other untouched. By noon gopher taken in set made in sand, others untouched, taken up. Owner of auto camp and "Old Timer" report that county went broke paying 5 cent bounty on gophers; Indians collected them anywhere, including Oregon, and turned them in; also no-

Erickson 1935 7 mi. north of Crescent City and vicinity Del Norte Co., Calif. Klamath and vicinity system of marking ones on which bounty had been paid, so that same animal was used several times. Took two gophers from four settings in hay field; the two not touched. June 8. Two sets untouched, taken up. Moved to Wonderland Park, four miles north of Klamath, south. In afternoon looked for gopher workings, going along Redwood Highway to side road to Requa, back into Klamath and on road east of Klamath, 4 mi. to Klamath Glen; both roads to Requa and Klamath Glen cut in steep hillides with little or no open country between them and Klamath River. Hills forested. No evidence of gopher workings, but mole mounds common. Near Klamath Glen some farm land on narrow strip between hills and river; two farmers interviewed reported no gophers in the region; one volunteered that mounds had been seen back in the hills six or more miles when he had been hunting; others, at the De Martini's ranch 7 miles north of Klamath 12 years ago, and suggested seeing a Mr. Chapman on the south side of the Klamath River. He tried to locate this place without success. June 9. In morning went out to De Martini's place; found some workings in pastures and fields along Wilson Creek. One farm hand consulted didn't know if any gophers were

[illegible]

Erickson 1935 Klamath and vicinity, Del Norte Co., Calif. present or not. Made 10 sets, seven in pastures, three in hay fields; one in black sand, two in reddish brown loam, rest in gray loam. Pasture with usual vegetation, fine grass, plantain, dandelion, yellow and white clover, dock, etc., mostly under six inches in height. Hay field recently cut. Mounds scarce in fields, and mostly old in pasture; more numerous and fresher where meadows along creek give way to forested hillside. In afternoon took five gophers; other sets untouched, made one new set in gray sand in hay field. June 10. Took two gophers from beats; one in hay field taken up; three filled in, opened and reset; made six new sets, one in pasture set in slope at edge; one in open hole took gopher while I was setting others. Late afternoon from sets in pasture took one gopher, took up one of sets. Went to Chapman's ranch on south side of Klamath River. Place is 3 miles by road from Klamath, is on hills above rising steeply from the ocean, about 1 mile south of the mouth of the Klamath. Mr. Chapman reported taking an occasional gopher in garden, but considered them rare. Looked through pastures without finding many gopher mounds, and the ones found not very fresh; made 5 sets; holes in all but one small, scarcely large enough to set traps, elevation estimated at 200 ft. Mr. Chapman has a bison, secured from Curcul (Park?), which runs with cattle. Soil light reddish brown; plants usual ones + large clumps of lupine.

Erickson 1935. Klamath and vicinity. Orrick Del Norte Co., California. June 11. Car trouble delayed start this morning. Five sets at Chapmans, untouched, taken up. Took three gophers from sets 7 mi north of Klamath, all of sets taken up. Went toureka to put Mrs Blanchard on stage. June 12. Went fromureka to Orrick. Spent afternoon looking for gophers along Redwood Creek and in hills on either side of valley, only moles found. June 13. Asked eight different farmers where gophers could be found, all but one said moles were common, but didn't think there was a gopher in the valley; one evidently didn't distinguish between moles and gophers; said specimen had been sent to University of California but couldn't get enough of a description to determine whether it was a mole or gopher. Went back to Chapman's ranch; made six sets near his place and in fields to south along old county road. Went up Orrick, Orleansureka road five miles to first prairie; no gophers. One farmer thought gophers might be found on next prairie, 20 miles farther on, but did not follow up this possibility. Looked at traps in evening, all sets untouched.

Erickson 1935 3 mi. West of Beatrice. Fremdale Humboldt County June 14. In morning looked at traps at Chapman's, all sets untouched, taken up. Moved to Leleta, 13 miles south of Cucha. In afternoon went to point 3 miles west of Beatrice on road starting from Beatrice. Pasture at south end of Humboldt Bay showed many fresh gopher mounds, also some moles. Made 12 sets; watched Heron colony for a half hour, looked at sets; took two gophers; reset these traps made two more sets; In evening took three more gophers. Pasture has been used for sheep. vegetation of usual sorts, grass, small clovers, plants short. Soil: light brown; elevation about 25-35 feet; steep bank from bay; then rises gently; gully in which trees of heron colony is located thick with thimbleberry, etc. June 15. Took three gophers from 10 remaining sets; two sets filled in; reset; five new sets made, one in open hole took gopher in twenty minutes. One other capture, but traps pulled out and all but incisor teeth and one cheek pouch of gopher eaten; no tracks in evidence. Late afternoon took three more gophers; pulled all of remaining sets. Made 8 sets in pasture 1 mile south west of Fremdale, on Fremdale-Copetown road. Pasture on hillside 100-150ft above elevation of Fremdale, so elevation about 175 feet. Soil light gray, fine, packed. Numerous mole and

Erickson 1935 Ferndale. Eureka Humboldt County. gopher mounds, mostly old. Dirt thrown out often, ofen in small, ½-1 in. clods, mixed with finer soil. Vegetation, grass, clover, etc., with some thistle and black- berry, 1 to 1 ½ feet high. June 16. Took 7 gophers from 8 sets, 1st untouched; made two more in same field and five in a similar field below the road; went along road from Ferndale to ocean; road follows base of hills; gopher and mole mounds common. June 17. Five gophers from seven sets of June 16; one single one filled in, another sprung and filled. Drove along Capitown road which climbs to top of coast hills and follows along tops; open fields, gopher mounds common. In afternoon looked along south and east edges of Eureka and along old Arcata Road without finding gopher workings. Found a few in field at southwest edge of town; made five sets, two probably mole runways. June 18. Took two gophers, from five sets; others untouched; made two new sets in same field only working, found in three fields covering 10-15 acres. Vegetation

[illegible]

Erichson 1935 Eureka and Lamoza Humboldt County of usual sorts, tall grass, plantain, small clovers, gophers found only where grass was relatively short. Made three sets at south edge of town in pasture south of cemetery; grass from one to one and a half feet deep. Soil in both places light brown. In afternoon made eight sets in fields one mile south of city limits. One of fields cleared, vegetation closely pastured; others with redwood stumps and deeper vegetation. Two farmers consulted in the course of beating gophers said that a few were present in the region but were not common; moles much more of a pest; the surface of many pastures was a series of humps from the past activities of moles. Soil at last group of sets similar to the two others in this region; all of sets made on first bench back from the bay, elevation about 25-35 feet. June 19. Took four gophers, from 8 sets one mile south of Eureka; one filled in, rest. Made five new sets. Took one from two sets at southwest corner of town (near Harris Street). Sets at south edge of town, missing, also markers locating them. In afternoon drove to Lamoza, gopher workings found in sand hills at north edge of town, mound and small grassy openings between masses of

[illegible]

Eriehaon 1935 Cureka and Samoa Humboldt County huckleberry, large yellow lupine, and other shrubs. Leathery clumps of Pinus contorta. Some gopher washings found in low growing about sometimes called, wild cranberry. Soil gray, very sandy. Made two sets. From sets left at Cureka took one female; this set are filled in this morning. June 20 From eight remaining sets at Cureka took sixty-one female; all taken up; went to Samoa; both of sets here were filled in; reset these, and made seven additional sets. One made in open hole took gopher in 20 minutes. In afternoon drove south of Samoa; mostly small sand dunes, no evidence of gophers. In evening took five gophers; made four more sets here, and three in field four miles north of Samoa. Mosquitoes the worst I have ever encountered. Ditched up small Garter snake near leron colony west of Beatrice in morning. June 21 Two of three sets four miles north filled in; traps taken up. Two gophers taken in four sets near Samoa. Made ten new sets at Samoa. In afternoon took eight gophers, one set filled in, other untouched, all taken up. Made four sets in pasture 1/4 mile north of Lolita. Two farmers between Lolita and Fern- bridge, who agreed to save any gophers they might take

Erickson 1935 Loleta and Fernbridge. have not secured any. We have had some in traps, but they have been eaten by skunks or cats. June 22. Took one gopher from four sets north of Loleta. In afternoon packed and visited localities, worked to get soil samples. June 23 Drove from Loleta to Santa Rosa. Seven ground squirrels counted killed on highway. June 24 Drove from Santa Rosa to Berkeley.

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{ "text": "\"OCEAN\"\n\nSMITH RIVER\n\"2 1/2 miles north of Fort Duchess\"\n\n\"5 miles south of Calista\"\n\nCRESCENT CITY\nEnders Beach\nBig Tree Auto Camp\nRequa\nKlamath\nKlamath Glen\nRuss Grove\nOrleans\nBlue Creek\nHoop Indian Reservation\nTish Tong Cr.\nWillow Creek\nQuincy\nChina Cr.\nSylvers\nHawkins Bar\nLimestairs\nHay Fork\nButter Cr.\nHyampom\nIndian Valley Cr.\nBear Hollow\nRuth\nCape Mendocino Light\nTable Bluff Light\nFields Landing\nEUREKA\nSAMOA\nFalk North Fork\nBeafrice\nNewburg\nScotia\nWeott\nBlocksburg\nAlder Point\nIsland Mountain\nLake Mount\nMendocino Cr.\nShelter Cove\n\"1 mile and 1/2 mile south west of\"\n\"Bull Creek Grove & Bull Creek Store\"\nPetrolia\nUpper Squaw Creek\nSquaw Creek\nHoneywood\nEttersburg\nEl River Lodge\nRichardson Grove\nHart Sook Inn\nDeVoy Grove\nPiersy\nTowillits 62 Miles\nTO Bell Springs\nTofr Bragg 68 Miles\n\nNOTE\n\nDENOTES BRANCH OFFICE OF CALIFORNIA STATE AUTOMOBILE ASSOCIATION\n\nUS DENOTES ROUTE NUMBERS OF U.S. HIGHWAY SYSTEM\n\nB DENOTES CAMPING GROUNDS MAINTAINED BY U.S. FOREST SERVICE\n\n\"4 miles east of Calista\"\n\n\"5 miles west of Blue Lake\"\n\n\"1 mile south of Clear Creek\"\n\n\"HAPPY CAMP EL 1279\"\n\n\"Clear Creek\"\n\n\"South Fork\"\n\n\"Bottle Cr.\"\n\n\"Rock Creek\"\n\n\"Rogue River\"\n\n\"Somes Bar EL 540\"\n\n\"Tea Cr.\"\n\n\"Metecol Lake\"\n\n\"Morrow River\"\n\n\"Horn Ranch\"\n\n\"Horn Ranch\"\n\n\"South Fork\"\n\n\"North Fork\"\n\n\"Jones Cr.\"\n\n\"Douglas Park Cr.\"\n\n\"Smith River\"\n\n\"Harbor\"\n\n\"El 2480\"\n\n\"Montgomery Mountains Camp\"\n\n\"Rogue S. Bragg Rd. I\"\n\n\"JOSEPHINE COUNTY\"\n\n\"DE LORTE COUNTY\"\n\n\"HUMBOLDT COUNTY\"\n\n\"SURRY COUNTY\"\n\n\"EL 379\"\n\n\"Bluff Creek Nois Cr.\"\n\n\"Forks of Salmon EL 1242\"\n\n\"Red Cap Creek\"\n\n\"Mill Cr.\"\n\n\"Middle Fork South Fork\"\n\n\"Pine Cr.\"\n\n\"El 800'\n\n\"EL 250 Martins Ferry EL 367\"\n\n\"Wellcreek\"\n\n\"Trinidad\"\n\n\"Moonstone Beach Little River Clam Beach Auto Camp Mad River Beach Blue Lake Arcata Freshwater Maple Creek Kneeland Shower Pass Blake Lookout EL 5775'\n\n\"EL 200 Deloma EL 120\"\n\n\"Blair Cr.\"\n\n\"Larkspur Cr.\"\n\n\"Valley Fork\"\n\n\"Kunm Cr.\"\n\n\"South Fork\"\n\n\"Black Lessick Red Lessick\"\n\n\"Indian River\"\n\n\"El 322 Seward\"\n\n\"Mccann Frutland Bolling Grove Stephens Grove Miranda Green Grove\"\n\n\"El 459 Holmes Redcrest Pepperwood Cr. Shively EL 149'\n\n\"Ridell Wildwood\"\n\n\"Metropolitan\"\n\n\"Capser\"\n\n\"Falk North Fork\"\n\n\"Bear River Length\"\n\n\"1 mile south west of Bull Creek Grove & Bull Creek Store\"\n\n\"Petrolia\"\n\n\"Upper Squaw Creek\"\n\n\"Squaw Creek\"\n\n\"Honeywood\"\n\n\"Ettersburg\"\n\n\"El River Lodge\"\n\n\"Richardson Grove\"\n\n\"Hart Sook Inn\"\n\n\"DeVoy Grove\"\n\n\"Piersy\"\n\n\"Towillits 62 Miles\"\n\n\"TO Bell Springs\"\n\n\"Tofr Bragg 68 Miles\"\n\n\"El 379\"\n\n\"Bluff Creek Nois Cr.\"\n\n\"Forks of Salmon EL 1242\"\n\n\"Red Cap Creek\"\n\n\"Mill Cr.\"\n\n\"Middle Fork South Fork\"\n\n\"Pine Cr.\"\n\n\"El 800'\n\n\"EL 250 Martins Ferry EL 367\"\n\n\"Wellcreek\"\n\n\"Trinidad\"\n\n\"Moonstone Beach Little River Clam Beach Auto Camp Mad River Beach Blue Lake Arcata Freshwater Maple Creek Kneeland Shower Pass Blake Lookout EL 5775'\n\n\"EL 200 Deloma EL 120\"\n\n\"Blair Cr.\"\n\n\"Larkspur Cr.\"\n\n\"Valley Fork\"\n\n\"Kunm Cr.\"\n\n\"South Fork\"\n\n\"Black Lessick Red Lessick\"\n\n\"Indian River\"\n\n\"El 322 Seward\"\n\n\"Mccann Frutland Bolling Grove Stephens Grove Miranda Green Grove\"\n\n\"El 459 Holmes Redcrest Pepperwood Cr. Shively EL 149'\n\n\"Ridell Wildwood\"\n\n\"Metropolitan\"\n\n\"Capser\"\n\n\"Falk North Fork\"\n\n\"Bear River Length\"\n\n\"1 mile south west of Bull Creek Grove & Bull Creek Store\"\n\n\"Petrolia\"\n\n\"Upper Squaw Creek\"\n\n\"Squaw Creek\"\n\n\"Honeywood\"\n\n\"Ettersburg\"\n\n\"El River Lodge\"\n\n\"Richardson Grove\"\n\n\"Hart Sook Inn\"\n\n\"DeVoy Grove\"\n\n\"Piersy\"\n\n\"Towillits 62 Miles\"\n\n\"TO Bell Springs\"\n\n\"Tofr Bragg 68 Miles\"\n\n\"El 379\"\n\n\"Bluff Creek Nois Cr.\"\n\n\"Forks of Salmon EL 1242\"\n\n\"Red Cap Creek\"\n\n\"Mill Cr.\"\n\n\"Middle Fork South Fork\"\n\n\"Pine Cr.\"\n\n\"El 800'\n\n\"EL 250 Martins Ferry EL 367\"\n\n\"Wellcreek\"\n\n\"Trinidad\"\n\n\"Moonstone Beach Little River Clam Beach Auto Camp Mad River Beach Blue Lake Arcata Freshwater Maple Creek Kneeland Shower Pass Blake Lookout EL 5775'\n\n\"EL 200 Deloma EL 120\"\n\n\"Blair Cr.\"\n\n\"Larkspur Cr.\"\n\n\"Valley Fork\"\n\n\"Kunm Cr.\"\n\n\"South Fork\"\n\n\"Black Lessick Red Lessick\"\n\n\"Indian River\"\n\n\"El 322 Seward\"\n\n\"Mccann Frutland Bolling Grove Stephens Grove Miranda Green Grove\"\n\n\"El 459 Holmes Redcrest Pepperwood Cr. Shively EL 149'\n\n\"Ridell Wildwood\"\n\n\"Metropolitan\"\n\n\"Capser\"\n\n\"Falk North Fork\"\n\n\"Bear River Length\"\n\n\"1 mile south west of Bull Creek Grove & Bull Creek Store\"\n\n\"Petrolia\"\n\n\"Upper Squaw Creek\"\n\n\"Squaw Creek\"\n\n\"Honeywood\"\n\n\"Ettersburg\"\n\n\"El River Lodge\"\n\n\"Richardson Grove\"\n\n\"Hart Sook Inn\"\n\n\"DeVoy Grove\"\n\n\"Piersy\"\n\n\"Towillits 62 Miles\"\n\n\"TO Bell Springs\"\n\n\"Tofr Bragg 68 Miles\"\n\n\"El 379\"\n\n\"Bluff Creek Nois Cr.\"\n\n\"Forks of Salmon EL 1242\"\n\n\"Red Cap Creek\"\n\n\"Mill Cr.\"\n\n\"Middle Fork South Fork\"\n\n\"Pine Cr.\"\n\n\"El 800'\n\n\"EL 250 Martins Ferry EL 367\"\n\n\"Wellcreek\"\n\n\"Trinidad\"\n\n\"Moonstone Beach Little River Clam Beach Auto Camp Mad River Beach Blue Lake Arcata Freshwater Maple Creek Kneeland Shower Pass Blake Lookout EL 5775'\n\n\"EL 200 Deloma EL 120\"\n\n\"Blair Cr.\"\n\n\"Larkspur Cr.\"\n\n\"Valley Fork\"\n\n\"Kunm Cr.\"\n\n\"South Fork\"\n\n\"Black Lessick Red Lessick\"\n\n\"Indian River\"\n\n\"El 322 Seward\"\n\n\"Mccann Frutland Bolling Grove Stephens Grove Miranda Green Grove\"\n\n\"El 459 Holmes Redcrest Pepperwood Cr. Shively EL 149'\n\n\"Ridell Wildwood\"\n\n\"Metropolitan\"\n\n\"Capser\"\n\n\"Falk North Fork\"\n\n\"Bear River Length\"\n\n\"1 mile south west of Bull Creek Grove & Bull Creek Store\"\n\n\"Petrolia\"\n\n\"Upper Squaw Creek\"\n\n\"Squaw Creek\"\n\n\"Honeywood\"\n\n\"Ettersburg\"\n\n\"El River Lodge\"\n\n\"Richardson Grove\"\n\n\"Hart Sook Inn\"\n\n\"DeVoy Grove\"\n\n\"Piersy\"\n\n\"Towillits 62 Miles\"\n\n\"TO Bell Springs\"\n\n\"Tofr Bragg 68 Miles\"\n\n\"El 379\"\n\n\"Bluff Creek Nois Cr.\"\n\n\"Forks of Salmon EL 1242\"\n\n\"Red Cap Creek\"\n\n\"Mill Cr.\"\n\n\"Middle Fork South Fork\"\n\n\"Pine Cr.\"\n\n\"El 800'\n\n\"EL 250 Martins Ferry EL 367\"\n\n\"Wellcreek\"\n\n\"Trinidad\"\n\n\"Moonstone Beach Little River Clam Beach Auto Camp Mad River Beach Blue Lake Arcata Freshwater Maple Creek Kneeland Shower Pass Blake Lookout EL 5775'\n\n\"EL 200 Deloma EL 120\"\n\n\"Blair Cr.\"\n\n\"Larkspur Cr.\"\n\n\"Valley Fork\"\n\n\"Kunm Cr.\"\n\n\"South Fork\"\n\n\"Black Lessick Red Lessick\"\n\n\"Indian River\"\n\n\"El 322 Seward\"\n\n\"Mccann Frutland Bolling Grove Stephens Grove Miranda Green Grove\"\n\n\"El 459 Holmes Redcrest Pepperwood Cr. Shively [TRANSCRIPTION_TRUNCATED_DUE_TO_LOOP]

MISCELLANEOUS MILEAGES ding to Trinity Center 50.8 ding to Trinity Alds Camp 'ia Lewiston 63.3 'ia Weaverville 65.0 ding to Beegum 43.0 Shasta City to Weed via McCloud ircling Mt. Shasta 61.0 ka to Hamburg via Fort Jones 53.6

Blanchard 1935 Carlotta, Humboldt Co. Calif. May 30, 1935 389 ♀ .2 mi. east of Carlotta, 179.5-57-25-6 77.19g. (Gopher) May 31, 1935 388 ♂ ¼ mi. east of Carlotta. 208-54-30-6.5 121.0g. (Gopher) Klamath, Del Norte Co., Calif. June 9, 1935 413. Garter Snake Wilson Creek, 7 mi. north of Klamath. 414 ♂ Wilson Creek, 7 mi. north Klamath 240-71-33.5-7.5 (Gopher) 204.6g. June 10, 1935 416 Ladpolee Wilson Creek, 7 mi. north of Klamath 417 Amphibians Wilson Creek, 7 mi. north of Klamath 418 Garter Snake ½ mi. south of mouth of Klamath River.