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