CALLII'EPLA. 191 



fl". Above deep olive-brown oi- umber, this color usiKillj- continued uninterruptedly 

 over Lind-neck to the crest; inner edges of tertials deep buff or ocliraceous ; 

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

 north to Oregon 292. O. pictus (Dougi,.). Mountain Partridge. 



a"-. Above grayish olivo, the hind-neck usually partly or wholly plumbeous, like the 

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

 paler (often whitish) anteriorly. Ilab. Sierra Nevada (both sides) from 

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



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



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



Species. 



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 buify or whitish, producing a conspicuous stripe along each 

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

 6'. Crest short, blended with, or not separated distinctly from, general feather- 

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

 Callipepla.) 

 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 sharjily bordered 

 with black, producing a scaled appearance ; scapulars and wings 

 pale bi'ownish ; 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 sti'eak of white, and (except on hind-neck) spotted with 

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

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

 whitish, the breast brownish graj', 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 

 1.28 X -98, white, buffy white, or pale buffy, usually more or less dis- 

 tinctly sprinkled or speckled with brown. 

 c'. Scapulars and wings pale graj-ish brown, or brownish gray ; belly 

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

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

 border of United States, from western Texas to southern .\rizonn. 

 293. C. squamata (Vio.). Scaled Partridge. 

 c'. Scapulars and wings deep graj'ish brown (sometimes hair-brown) ; 

 posterior lower parts deeper buff}- (sometimes decidcdlj- ochra- 

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



