380 University of California Publications in Zoology [Vol. 12 



found at the latter point, June 8, contained seventeen eggs. Seven 

 of these occupied the center, while the remaining ten were disposed 

 in an outer row. Observed also at Tower House. 



Dendragapus obscurus fuliginosus (Ridgway). Sooty Grouse. 

 Two skins (nos. 17304, 17305), taken at Hay Pork March 20, sent to 

 the Museum by George Knowles. These are not typical fuliginosus, 

 but show themselves to be a step nearer to this humid-coast form than 

 the grouse of the localities enumerated under the next heading. The 

 Trinity region evidently constitutes a part of the area of intergrada- 

 tion between sierrae and fuliginosus proper. 



Dendragapus obscurus sierrae Chapman. Sierra Grouse. Eight 

 specimens (nos. 19128-19135), from Callahan, north fork of Coffee 

 Creek, Grizzly Creek, Summerville, head of Rush Creek and head 

 of Bear Creek. One of these is a downy young, taken on July 8 ; 

 three others are juveniles, taken July 18 and 25 and August 7. 

 The females and young average very slightly browner dorsally and 

 are more heavily marked on the breast than typical sierrae, thus 

 indicating intergradation towards fuliginosus. 



Heard drumming at Jackson Lake the third week in June, and 

 one shot on flanks of Wildcat Peak, June 27. Brood of half-grown 

 young seen July 18, at Summerville, where these birds are said to 

 visit the farmyard occasionally to share the feed with the chickens. 

 A farmer on Kangaroo Creek complained that grouse were so 

 numerous that they were injuring his young grain. At this season, 

 August, the grouse come down off the hillsides and collect around 

 the margins of clearings where they prove locally destructive to 

 crops. Abundant at head of Bear Creek during second week of 

 August. 



Zenaidura macroura marginella (Woodhouse). Western Mourn- 

 ing Dove. Nest and two eggs found June 5 at Mayten. A flock 

 noted at .Scott River, June 11. 



Accipiter velox (Wilson). Sharp-shinned Hawk. One imma- 

 ture (no. 19136), from Castle Lake, August 19. 



Accipiter coopcri (Bonaparte). Cooper Hawk. One immature 

 (no. 19137), from Kangaroo Creek, August 3. 



Astur atricapillus striatulus Ridgway. Western Goshawk. One 

 adult (no. 17306), from Hay Fork, taken March 26 by George 

 Knowles. 



Falco sparri rias sparvcrius Linnaeus. Sparrow Hawk. One 



