46 



GAME BIRDS OF NORTH AMERICA. 



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OREORTYX P ICTUS PLUMIFERUS. 



Geographical Distrihtition. — Both sides of the Sierra Nevada, 

 and in eastern Oregon and to the Panamint Mountains and 

 Mount Magruder, Nevada. In California from San Francisco 

 Bay to the Argus Mountains. 



Adult Male. — Forehead and chin, white ; head, hind-neck, 

 upper part of back and breast, plumbeous ; long black crest from 

 occiput ; throat, deep chestnut, bordered on sides with black, out. 

 side of which is a line of white ; wings, back, and upper tail- 

 coverts, grayish olive ; flanks, deep chestnut, barred broadly with 

 white, beneath which is a narrow black bar ; abdomen, chestnut i 

 under tail-coverts black, the feathers having a central line of 

 deep chestnut ; inner edges of tertials, narrowly lined with white, 

 forming two lines on back ; dimensions about the same as those 

 of the O. pic t us. 



There is no particular difference in the coloring of the sexes, 

 and the female is recognizable chiefly by her shorter crest. 



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