Appendix. 



scribed above. It is a summer resident of the 

 high Sierras, migrating southward chiefly on the 

 eastern slope. The Intermediate Sparrow 

 i^Zonotrichia leucophrys intermedia Ridgw.) is 

 practically identical with the preceding, save for 

 the marking of the lores. The lores are that 

 portion of a bird's face between the eye and the 

 upper mandible. This spot is black in the 

 typical eastern bird and whitish or grayish in 

 the intermediate sparrow. It requires a close 

 observer to detect a diiference so trivial. Breed- 

 ing north of California, south in autumn through 

 the Sierras, chiefly to the interior valleys. 



Gambel's Sparrow ; Zonotrichia leucophrys gambeli 

 (Nutt.). 



The lores are as in the preceding species, but the 

 ashy tone of the back is replaced by olive- 

 brownish, streaked with brown and blackish 

 markings. The under parts are brownish gray 

 instead of ashy. Inner edge of wing yellow. 

 This is the common variety of the coast valleys 

 and mountains. In winter it is one of the most 

 abundant birds about San Francisco Bay, al- 

 though comparatively few remain to breed. 



123. Golden-crowned Sparrow; Zonotrichia 

 coronata (Pall.). 



Forehead and stripes on sides of head black; 

 top of head dull yellow, bordered by ashy 

 behind. (These colors become more brilliant 

 yellow and almost pure white at the commence- 

 ment of the breeding season, while in immature 

 birds the black of the crown is replaced by 

 brownish, and the ashy is wanting or obscure.) 



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