PEVCJEA. 



429 



lower parts light grayish brown, or dull grayish buff, paler on 

 throat and belly; a distinct broad black streak on each side of 

 throat, bordered above by a maxillary stripe the same color as 

 throat ; a rusty postocular streak. Young : Upper parts, including 

 top of head, dull brownish, streaked with darker; lower parts 

 dingy pale grayish buff, the chest and sides streaked with dusky ; 

 otherwise, much like adult.) 

 d 1 . Feathers of back largely rusty or chestnut centrally; prevailing 

 color of upper parts dull brownish. 

 e 1 . Smaller: Length about 5.50-5.75, wing 2.20-2.40 (2.32), tail 

 2.50-2.70 (2.58), culmen .48-.50 (.49), depth of bill at base 

 .20-.22 (.21), tarsus .75-.80 (.79). Eggs .78 X .60, plain 

 bluish white. Hob. California. 



, 580. P. ruficeps (Cass.). Rufous-crowned Sparrow. 

 e\ Larger: Length 6.10-6.60, wing 2.50-2.80 (2.60), tail 2.75-3.00 

 (2.89), culmen .50.-58 (.52), depth of bill at base .2S-.27 

 (.26), tarsus .78-.90 (.81). (Colors rather less bright than - 

 in P. ruficeps, with the rusty less bright and the lower 

 parts rather less fulvous, but the difference very slight 

 and not entirely constant.) West on ground, in or by 

 tufts of grass. Eggs 3-4, .83 X -60, plain white. Hob. 

 Tablelands of Mexico, from Oaxaca north to Lower 

 California, southern Arizona and New Mexico, and west- 

 ern Texas. 

 580a. P. ruficeps boucardi (Sex.). Boucard's Sparrow. 

 d 2 . Feathers of back dull brownish (not rusty) centrally, with black- 

 ish shaft-streaks ; prevailing color of upper parts ashy, es- 

 pecially on back and scapulars ; measurements essentially as 

 in P. boucardi. Sab. Eastern Mexico (highlands of Vera Cruz, 

 etc.), north to central Texas. 



5806. P. ruficeps eremceca Brown. Rock Sparrow. 



Lesser wing-coverts uniform bright cinnamon-rufous (except in first 



plumage). 



Adult: Top of head streaked broadly with dark rufous or rusty 



(sometimes nearly uniform rufous) and narrowly with grayish, the 



latter also forming a more or less distinct median line ; a broad 



superciliary stripe and sides of head generally light grayish ; upper 



parts brownish gray or light grayish brown, the back and scapulars 



streaked with blackish ; lower parts grayish white ; a blackish 



streak along each side of throat, another from corner of mouth, and 



a rusty postocular streak. Young : Upper parts, including whole 



top of head, light brown, broadly streaked with blackish ; lesser 



wing-coverts dusky centrally, margined with pale brownish buff ; 



lower parts whitish, the chest and sides broadly streaked with 



dusky. Length 5.70-5.90, wing 2.40-2.55, tail 2.80-3.00, tarsus 



