388 University of California Publications in Zoology [ VoL - 12 



ruary 20 to March 7, and no. 19431, from Scott River, June 11. 

 Most numerous at Tower House. 



Regulus satrapa olivaceus Baird. Western Golden-crowned 

 Kinglet. Seven skins, nos. 17432-17438, from South Pork of Salmon 

 River (July 14 and 16), head of Grizzly Creek (July 21-23), and 

 head of Rush Creek (July 27). 



Regulus calendula (Linnaeus). Ruby-crowned Kinglet. Four 

 skins, no. 17393, from Helena (February 14), no. 17394, from Tower 

 House (March 7), no. 19439, from South Fork of Salmon River 

 (July 16), and no. 19440, from head of Bear Creek (August 13). 



Myadestes townsendi (Audubon). Townsend Solitaire. Five 

 skins, nos. 17395, 17396, from Helena (February 14 and 23), no. 

 17397, from Tower House (March 1), no. 19441, from North Fork 

 of Coffee Creek (July 3), and no. 19442, from Kangaroo Creek 

 (August 4). 



Hylocichla ustidata ustidata (Nuttall). Russet-backed Thrush. 

 Two adult skins, nos. 19443, 19444, from Jackson Lake (June 25), 

 and head of Grizzly Creek (July 23). Nest and four eggs (no. 

 1097) taken at Jackson Lake, June 25. This was situated three 

 feet above the ground on a sagging branch of a small fir, and was 

 loosely constructed of dry fir twigs, dead ferns and moss. 



Hylocichla ustidata swainsoni (Tschudi). Olive-backed Thrush. 

 One adult male, no. 19447, from head of Grizzly Creek, 6000 feet 

 altitude, July 22. 



Hylocichla guttata nanus (Audubon). Dwarf Hermit Thrush. 

 Seven skins, nos. 17398-17404, from Helena and Tower House, 

 February 13 to March 7. 



Hylocichla guttata slevini Grinnell. Monterey Hermit Thrush. 

 Two specimens: no. 19445, female juvenal, head of Rush Creek, 

 July 29 ; no. 19446, female immature, head of Bear Creek, 

 August 12. 



PlanesiLus migratorius propinquus (Ridgway). "Western Robin. 

 Eight skins, nos. 17405, 17406, 19448-19453, from Helena (February 

 24), Mayten (June 5), Jackson Lake (June 19 and 24), and head 

 of Bear Creek (August 10 and 16). At the latter locality and 

 dates robins had gathered in flocks, feeding in the ceanothus brush. 



Ixoreus naevius naevius (Gmelin). Varied Thrush. Three 

 skins, nos. 17407-17409, from Helena and Tower House, February 13 

 to March 7. 



