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Coppell 1949 Journal 53 Big Lagoon Humboldt co, Calif. Aug.9 (cont.) of alder without the Rubus understory.. Umbellifers & skunk cabbage are common, & other tall herbs; but the tangle of trunks of alder itself is nearly impene- trable. Saw 1 Bicolored warbler here, and a rail immature (Virginia) was glimpsed when it ran from the bed of Butler creek into tall herbs up the bank, pecked out again briefly & was gone before I could shoot: I also worked around the woods N. of camp to the Hammond lumber co. road bridge & return, resetting the 55 traps in same line as last night. Birds observed more: cathartes aura - 10+ falco sparveria - 1 Lophortyx californica - 1 pr. with 10 ½ grown young. Rail (Virginia) - 1 imm. shorebird (small)- numbers flying over Brachyramphus marmoratus- heard flying over at Basin. Colomba fasciata - 8 Chaetura vauxi many especially at dawn & dusk Selasphorus sp. - 3+ Chordeiles minor - 1 flying over early A.M. Megaceryle alcyon - 1+ Lendroecopus villosus- 1 " pubescens several Empidonax sp.(probably troglitii)- feeling young. Contopus richardsoni - several, still giving full call occasionally Nuttallornis borealis - 3+ Indigo bunting many Hirundo rustica - " Stelgidopteryx ruficollis - 2+ Petrochelidon pyrrhonota - 1 cyanocitta stelleri -1 land corvus corax - 2+ Corvus pubescens- abundant Sialia mexicana - small flock Certhia familiaris - 1 Chamaea fasciata (8)-1 pr. land Troglodytes troglodytes (singing) Turdus migratorius-several. Hylocicla mustelata - 10+ (cont'd p.54)
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Coyote 1949 Journal 36 Big Lagoon, Humboldt Co., Calif. Aug. 10 (cont.) cathartes aura - several Salco sparsers - 1 actites macularia - 1 (in gravelly stream bed) Colombo fasciata - 8 chaetura vauxi many megaceryle alcyon - 1 Caloptes cafer - 2 heard hylatomus piletus (recent work seen) Dendrocopos vellosus - 3 (in trees, snags on turned over slope) Dendrocopos pubescens - 1 Empidonax sp.? -- 2 Entopus richardsoni - 10+ + nutallornes borealis - 4 (1 collected) (* = see species account) * Tachycineta thelesinia - 1ad 1 im. (ad. collected) Iridoprocene bicolor many Corvus corax - 2+ Parus rufescens many Osaltirparus minimus - several Chameea fasciata - 3+ (heard in brush on slopes) Troglodytes troglodytes - 2 Turdus migratorius - 10+ Xylophilla rustulata - 2 + Xombgrilla cedrorum - 4 * Vermivora ruficapilla - 2 Dendrocea destiva - 3 Oporomus tolmei - 1? Wilsonia pusilla many Riranga ludoriciera - 3 Hedynales melanocephala - 2 Carpodacus purpureus - 2 Spinus tristice many Spinus pinus 5+ Zonotricha leucophrys - 1 flock (with many juveniles) Melospiza melodia - many Aug. 11 I moved my traps last night to border of slow, boggy stream also on the east side of the clearing east of Maple Creek - along 20-30 yard wide old roadway with logs, etc. running uphill toward conifer forest from the stream. about 1/2 the traps were set well into the brush in deep shade. The night was clear, with heavy dew. Catch: 7. Peromyscus maniculatus (ad.; 4 charging pelage; 2 juvenile pelage - not saved) 1- Peromyscus sp. (= # 13.) 1- Microtus oregonensis (= # 14) 2- Zapus trinitotatus (1= # 15; 1 = 640 Murray) no shrews despite the seemingly excellent area.
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Cogswell 1949 59 Journal Big Lagoon, Humboldt C., Calif. Aug. 13. Caught the following in my traps in the Redwood forest on slope N. of camp at an altitude of about 350 ft: 1 - young Peromyscus maniculatus 2 - Zapus trinotatus (I kept alive) (see species) account) 1 - Sorex pacificus " .." About 8:45 A.M. I walked along Maple Creek to its mouth at the SE end of Big Lagoon (see map p. 72A). The marsh vegetation is of tall Scirpus sp. on the muddy banks and over flats which are wet but not under more than 6 miles of water at present. There is americana? + cleodanes. a border of a smaller Scirpus along the * steepers stream banks (mud); and there are extensive patches of a definitely triangular- Scirpus robustus Pursh. -stemmed sedge (= S. campestria B102) occurring on the tall similar ground as, Scirpus, but each separate stands. The shallower channels (to 3 1/2-4 ft.) are mostly filled with Potamogeton sp.? ex- cept where the bottom is of sand or gravel. Birds noted in this area were: Podilymbus podiceps - 1 Anas platyrhynchos - 6+ Anas acuta - 30+ Anas cyanoptera - 29 (or? design) Cathartes aura - 2 (flushed from gravel bar) * Porzana carolina - 5 (I collected flies board) Jutela americana - 2 Charadrius vociferus - 2 Squatarola squatarola - 10 (flying over, with ducks) Actitis macularia - 5 Erolia minutilla - 20+ Cremetes mourii - few *Chaetura vauri - many Hummingbird sp? - 1 Dribopatreine bicolor - many Hirundo rustica - 5+ Progne subis - 2 *Telmatogetes palustris - many agelaius phoeniceus - 2+ Charpodacus mexicanus - 14? melodica melodica - many (* = see species account)
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Coyseell 1947 Journal 64 Big Lagoon, Humboldt Co., Calif. Aug. 16 (cont) and the general lay of the vegetation on the ridge NE of Maple Creek, the ranch where Murray & I were this A.M., etc. From there I went along the south border of the marsh at the S.C. end of the lagoon, passing thru Scirpus & Carex belts, across a channel to an island with open (grazed) flats of Carex & Potamogeton & some open mud; thence back across the old channel to the S. end of the highway bridge & thru the bit of marsh & wet meadow just W. of the bridge. This last is a mass of Potentilla, a low, thin sedge, some fernous & much grass; it is ungrazed, looks like ideal Microstis habitat. Finishing at the Bridge at 4:30 p.m. I had seen or heard the following species in or over the marsh and lagoon: Pelecanus occidentalis - 2 Phalacrocorax sp? - 3 Ardea herodias - 1 Anas platyrhynchos - 3+ Anas acuta - 300 (careful) Anas carolinensis - 1 (estimate) Cathartes aura - 2+ Heliocnemis limicola - several Porzana carolina - 1+ Juliola americana - 4 Charadrius vociferus - 1 Squatarola squatarola - several ?? (glimpsed from bridge, while passing in ear) Actitis macularius - 1 Erolis minutilla - 3 Crexetes mauri - 1 Larus occidentalis - 1 imm. " californicus - 1 ad. " sp (" or ?) - 2 Chetura vauxi - many Selayorus sp. - 1?+ Tachycinetus thalassius - several Drepanoprocne brocks - many Heligopsiseryx ruficollis - 1 ad. Xirimbos rustica - many Progne subis - 2 Corvus corax - 2 Telmatodytes pallidus - many Wilsonia pusilla - several Ageleius phoenixus - 30+ Cuphaeus cyanoccephalus. 1?+ (at log pond) melopeta melodes many In late p.m. Murray & I set traps in forest of Sequoia sempervirens, Abies grandis, Pseudotsuga taxifolia, Picea sitchensis with an understory chiefly of Gaul- theria shallon with other shrubs in some areas, such
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Cogswell 1949 Journal 68+ Big Lagoon, Humboldt Co., Calif. Aug. 18 (cont.) In the gravel algae-lined pools in the stream in the burned-over area, tadpoles of Bufo were abundant as well as small fish. Birds noted were as follows: cathartes aura - several Sophortyx californius - heard alttity maculatus - 2 columba fasciata - 15+ cheetua vauxi - many Selasphorus sp.? - several megacycle allegon - 1 (near bridge) toloptis calla - 2 Dryocopus Hyletomus pileatus - 1 * Sphyrapicus varius - 1 im. Dendrotocus villous - 2 " pubescens - 2 * Empidonax troellii - 3+ # Contopus richardini - 10+ Mittallornis forestis . 5 swallow sp? - several Brogne sedes - 30+ Corvus corax - 2 * Cyanocitta stilleri - 2 Parus rufescens - 5+ Chamea fasciata - many Troglodytes aedon - 1 Trindis migratorius - several Hylorilla instulata - 3 Sagulus setrepa - several (in conifers near bridge) Bombayilia cedronum - several varmivors celata - 1 Dendroica aestiva - 1 opsornis tolneij - 2 * Geothlypis trichas - 1 Wilsonia pusilla - many Paranga ludoviciana - 3 # melanocphala thecticus - 3+ * Carpodacus purpurus - 1 Spinus pinus - several " tristis - many Loxia curvirostra - 4 Spizella passerin - 1 im. Tontirichia leucophrys - several melospiza melodia - many. Aug. 19 Since we are moving camp today I will summarize the area around Big Lagoon which I have covered, insofar as its various aspects of topography, climate, and vegetation relate to vertebrate animal distribution probably. The uplands in this region were all originally covered with coniferous forest except certain far seaward slopes with poor soil, as, e.g. the area farther N. on the map inserted at the end of today's journal entry. Logging, both selective and clean cut plus much subsequent burning has altered the vegetation after p. 72.
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Coggswell 1949 Journal 69 4 Big Lagoon, Humboldt Co., Calif. (SUMMARY) Aug 8-19 (cont.) and consequently the animal life over wide areas, whereas other areas are still relatively undisturbed. In the valley of Maple Creek this complication of habitats is magnified by the natural succession of river bottoms and its retardation by grazing as well as by logging & fire. The marsh at the S.E. end of the lagoon is also partly grazed. The lagoon is primarily fresh water although oc- casional high waves slop across the beach into the N. end of the lagoon. The time available for studying of the vegetation and flora did not allow gaining a full picture of the succession; but certain "associations" or "habitats" may be recog- nized. Based largely on vegetation, with consid- eration of species composition of the dominant plants only where it obviously affected the animal population, I am listing here the habitats or "associations" referred to in the species account summaries for Big Lagoon. These distribution of these associations is also indicated in a very general way on the map (p. 72 A). Coniferous Forest Formation Redwood forest 1. Sequoia sempervirens forest -- understory complex, chiefly of Swettieria shallon, Polystichum munitum, Phyllodium sp. Vaccinium parviflorum, and Lomaria spicant 2. Abies nitidensis - abies grandis forest -- extensively mixed with last, but pure on lowest slopes. Under- story similar to last + Vaccinium ovatum, Corylus rostrata, &c., Tamienia involucraria, etc.
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Cagwood 1949 Journal occurrence of vertebrate species aug.26-Sep.4, by habitat, willow Creek area Habitat (see pgs. 73-84) 97-98 Species Maple-Alder canyon bottom Forest Tan Oak-Mahone -Douglas Fir Forest Madrone - Black Oak - Sarry O. weedy Field Deciduous Shrub Briar Thickets Dry Shrubland River bank Woodland Walnut Orchard Gravel or Boulders of Stream banks River (Trinity River) P. 110A dates each Habitat visited all dates (at camp) aug.27,28 aug.27,28 aug.28,29 aug.28,29 aug.28,30,31 aug.28,29,30 aug.28,29,30 aug.28,29,30 aug.28,29,30 species collected 1-Aug.28 1-Aug.29 1-Aug.30 2-Aug.29,30 Yellow Warbler Black-throated Gray Warbler 1-Sep.2 1-Sep.3 1-Aug.29,30 Tolmie Warbler 1-Sep.2 1-Sep.2 2-Aug.29, 30, 1-Aug.29,30 Chat Chat 2-Aug.30,31 [GW6] Red-tailed Warbler 2-most lots 1-Aug.27 Western Tanager common in all hab. max no. seen in one starts with trees or shrubs; day = 30's on aug. 30th Black-headed Grosbeak 1-Aug.27 2-Aug.27 x <-.............also 30,31 1-23 aug.28 [1-2 Lazuli Bunting 2+< aug.28-31 Purple Finch 2+< aug.28-31 House Finch several aug.28-31 Pine Siskin 2-Aug.27 1-Aug.27 American Goldfinch several aug.28- 31 Green-backed Goldfinch x< several-- 3-20 aug.28,31 Spotted Towhee 1-Aug.28 1-4 aug.28,31 1-Aug.29 (x) from adjacent thickets Savannah Sparrow 2-Aug.28 10-Sep.3 1-3-Aug.29 - 31 Oregon Junco 2-Aug.27 . .29 2-Sep.3 White-crowned Sparrow 2-Sep.3 Song Sparrow several, aug.28-31 Clethionomys californicus 2- Peromyscus maniculatus several Eutamias (townsendi ?) "" Citellus beecheyi 2-Aug.28 + several several bordering -> Sciurus griseus several several 1-Aug.31 Sylvilagus bachmani 2 Odocoileus hemionus 1 2
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Cogswell 1949 Selasphorus sp. Aug. 8-19 Big Lagoon, Humboldt Co., Calif. From 1 to 3 (all in & plumage) seen on 5 different dates during the period, the 3's being around the border of the spruce-alder forest or the open pasture with thistles; also on the 3-year old burn, where they fed about the abundant blossoms of Epilobium angustifolium, and in the "chaparral" of the ridge E. of the lagoon where they likewise fed at Epi. lolium. On the 14th I saw one hovering about several blossoming heads of Scirpus sp. in the inland end of the marsh; it was obviously obtaining something from them, apparently not resting material, for nothing could be seen in its bill as it flew away. Aug. 19 Stone Lagoon, Humboldt Co., Calif. - 1 chased from trumpet-shaped blossoms of shrub [illegible] near associ- ated gas station by a young ? Calypte anna. Aug. 20 French Camp, 3100 ft., Humboldt Co., Calif. 1 & plum- aged bird seen in burned over area now regrown to tan oak & chinquapin shrubs. Flowers were very scarce in this dry situation. Aug. 24 1 ?-plumaged bird flew thru our camp, under the canopy of young Douglas firs & incense cedar. Aug. 29 1 mi. N Willow Creek, 400 ft., Humboldt Co., Calif. - The distinctive "buggy" chatter of this genus was heard from woodland bordering Trinity River. Sep. 8 S. Dubabella Mtn. 5600 ft., 12 mi. S Hayfork, Trinity Co., Calif. 1 ?-plumaged bird alighted on a margaenta twig just over ridge of a high barren ridge. I shot at it, but it flew away thru the bush.
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Coquell 1949 Eutamias sonomae 2 Red Mt, 5300 ft., 14 mi. S Hayfork, Trinity Co., Cal. Sep.6 (cont) dense brush as they do when alarmed. I collected one from top of a 3 ft. high branch of a fallen log in midst of a dense thicket of Ceanothus cuneatus on a S-facing slope with a few scattered Pines (jeffreyi x ponderosa). 3+ other chipmunks, scolding me with similar calls, ran into the brush from near the log. 2 of them came up on a rock to scold me as I started writing this. Sep.8 (9:10am) S. Dubabella Mt., 5600 ft., 12+ mi S Hayfork, Trinity Co. Cal. along the trail in the area of low shrubs just above the upper border of white fir -- Jeffrey pine forest on a N-facing slope I [illegible] 3 species of chipmunks scolding me at once. although I cannot see this species, its extremely high pitched call, as described on Sep 3-4, is in sharp contrast to those of E. amoenus & E. townsendi (which see). This call is given in separate series of 8-12 staccato notes. Mellow "pook" notes heard also, but which species gave them I do not know Sep.9 (2 mi. N by W) Red Mt., 5300 ft., 14+ mi. S Hayfork, Trinity Co. Cal. at 10:30 a.m., while I was writing notes on the Puffing owl observation, in an area of open Jeffrey Pine, In- cense cedar, and a few tawny oaks near an opening in the forest bordered by Ceanothus cordulatus. several of these chipmunks became active in the brush. They had been silent since soon after my shot at the owl, but soon one came up slope along a fallen cedar log just within the forest & sat on a branch of it calling a series