CALLIPEPLA. 191 



2^. Above deep olive-brown or umber, this color usually continued uninterruptedly- 

 over hind-neck to the crest ; inner edges of tertials deep buif or ochraceous ; 

 forehead entirely ashy. Sab. Pacific coast district, from San Francisco 

 north to "Washington Territory. 



292. O. pictus (DouGL.). Mountain Partridge. 



2^. Above grayish olive, the hind-neck usually partly or wholly plumbeous, like the 

 breast ; inner edges of tertials light buff or buffy whitish ; forehead distinctly 

 paler (often whitish) anteinorly. Hab. Sierra Nevada (both sides) from 

 eastern Oregon southward; southern coast district of California?; Lower 

 California? 292a. O. pictus plumiferus (Gould). Plumed Partridge. 



Genus CALLIPEPLA Wagler. (Page 185, pi. LVI., figs. 4, 5.) 



Species. 



i'. Tail three-fourths as long as wing, or longer ; flanks striped ; tail-feathers plain 

 bluish gray ; tertials and scapulars without black spots ; inner webs of ter- 

 tials edged with buffy or whitish, producing a conspicuous stripe along each 

 side of rump when wings are closed ; wing 4.50, or more. 

 b^. Crest short, blended with, or not separated distinctly from, general feather- 

 ing of the crown; sexes essentially alike in plumage. (Subgenus 

 CalUpepla.) 

 Adult : Tip of crest white ; rest of head plain light brownish or gray- 

 ish, paler and more buffy on throat ; hind-neck, upper back, and 

 anterior lower parts bluish gray, each feather sharply bordered 

 with black, producing a scaled appearance ; scapulars and wings 

 .pale brownish; flanks streaked with white; other lower parts 

 buffy, the belly sometimes with a patch of chestnut-brownish. 

 Young : Upper parts brownish gray, becoming more decidedly 

 brown on scapulars and wing-coverts, the feathers marked with a 

 mesial streak of white, and (except on hind-neck) spotted with 

 blackish ; lower back, rump, and upper tail-coverts ash-gray, some- 

 times more or less distinctly spotted with white ; lower parts dull 

 whitish, the breast brownish gray, marked with wedge-shaped streaks 

 or spots of white, often mixed with dusky spots. Length about 9.50- 

 12.00, wing 4.50-5.00, tail about 4.10-4.50, tarsus about 1.30. :Eggs 

 1.24 X .94, white, buffy white, or pale buffy, usually more or less dis- 

 tinctly sprinkled or speckled with brown. 

 c\ Scapulars and wings pale grayish brown, or brownish gray ; belly 

 pale buffy or whitish, usually without trace of chestnut or brown 

 patch, in either sex. Hab. Northwestern Mexico and contiguous 

 border of United States, from western Texas to southern Arizona. 

 293. C. squamata (Yig.). Scaled Partridge, 

 c*. Scapulars and wings deep grajnsh bi'own (sometimes hair-brown) ; 

 posterior lower parts deeper buffy (sometimes decidedly ochra- 

 ceous), the belly with an extensive patch of rusty chestnut 



