Appendix, 



a". Back bluish or slaty gray; head 

 blackish or grayish brown. 

 a"\ Length 10.5 inches. Throat 

 white, streaked with black. 

 Western Robin . 201 



h'". Length 4.5 inches. 



Red-breasted Nuthatch 186 

 Throat and fore breast chestnut or 

 rufous; under parts whitish or bufFy. 

 Above lustrous bluish black; flight sus- 

 tained. 



a'. Forehead chestnut ; head and back 

 continuously bluish black; tail long 

 and forked. 



Barn Swallow . 144 



'. Forehead whitish or buffy; collar 



around hind neck, and rump rufous ; 



a blackish spot on chest. Tail short. 



Cliff Swallow . 143 



Sides rufous; head, back, throat and 



breast mostly black. 



Spurred Towhee . 134 

 Head with bright rufous or chestnut 

 cap; breast plain gray. 

 a\ Back brown, broadly streaked with 

 reddish brown; breast buffy white. 



Rufous-crowned Sparrow 130 



b'. Back brown and gray, with fine 



brown streaks; breast ashy white. 



Western Chipping Sparrow 



124 



/. Back olive-greenish; throat white. 



Green-tailed Towhee 136 



250 



