BIBDS OP KOBTH AND MIDDLE AMEBIOA. 



287 



summer plumage) dull brownish white, the paler bars usually nar- 

 rower than the black ones; wings (including coverts) black, barred, 

 more or less broadly, with pale drab or dull brownish white; rump 

 and upper tail-coverts white, spotted or barred with black on lateral 

 portions; tail black, the middle rectrices crossed with obUque bars 

 of white (at least on inner web), the lateral rectrices barred with 

 white on distal portion; sides of head drab, paler (sometimes whitish) 

 on orbital region, the malar region usually streaked or flecked with 

 black; chin and throat plain light drab (nearly 6cru-drab), rarely 

 with a median streak of red; chest usually barred with black and 

 pale buffy brown or pale 6cru-drab, with a tendency to more or less 

 of a black patch through coalescence of the black bars on central 



; portion, frequently with a large and well-defined patch of unbroken 

 glossy greenish black, sometimes covering whole throat and fore- 

 neck; sides and flanks regularly barred with black and pale 6cru- 

 drab or brownish buffy; abdomen and median portion of breast 

 immaculate yellow (primrose to nearly lemon yellow); under tail- 

 coverts white, with V- or U-shaped bars of black; biU, etc., as in 

 adult male; length (skins), 198-222 (209); wing, 132.5-143 (136.2); 

 tail, 78-89 (84.1); cuhnen, 21.5-28.5 (24.2); tarsus, 20-22.5 (21); 

 outer anterior toe, 14-16 (14.8)." 



Young female. — Similar to the adult female, but bars less sharply 

 defined, qhest never (?) with a black patch, yellow of abdominal area 

 paler and duller (often dull yellowish white), and texture of plumage 

 different. 



Boreal Mountain forests of western North America; north to 

 southern British Columbia (near Fairview, Osoyos District; Simil- 

 kameen); breeding southward to southern California (San Jacinto 

 Mountains, Mount Whitney, etc.), southern Arizona (Santa Catalina 



i Mountains) and central New Mexico (Zuni Mountains; Tres Piedras; 

 Willis; Pecos Baldy; San Migu61 County), east to Colorado and 

 Wyoming (Springhill; Laramie Peak); wintering in southern Cali- 

 fornia to western Texas (Concho, Tom Green, and Uvalde counties) 



o Seventeen Bpecimene. 



