808 



BULLETIKT 50, UNITED STATES NATIONAL MUSEUM. 



subauricular spot, margined posteriorly by a blackish bar; throat 

 cinnamon to cinnamon-buff, this extended laterally to behind the 

 black post-malar bar, where sometimes barred with blackish; rest of 

 under parts a confused mixture of white, grayish, and dull light cin- 

 namon or light buffy brown, the white predominating posteriorly, the 

 grayish and cinnamon prevailing anteriorly, the colored areas nar- 

 rowly and irregularly barred with dusky; under taH-co verts white, 

 with subterminal irregular spots of pale btiffy brown or narrow mesial 

 streaks of dusky; under wing-coverts white, suffused with pale buffy 

 brown and irregularly spotted with deep grayish brown, the edge of 

 wing, however, immaculate white; imder surface of remiges with 

 broad bars or transverse spots of yellowish white, except on distal 

 portion of larger and outermost primaries; bill pale horn color (in 

 dried skins) with yellowish tomia; iris lemon yellow. 



Young. — Similar to adults but pileum nearly inmiaculate deep 

 brownish gray, and without any cinnamon-buff on face or throat, or 

 buffy brown on upder parts, the latter irregularly marbled or clouded 

 with white and light brownish gray narrowly barred with darker. 



Brown phasefl 



Much browner than the grayish (usual) phase, the general color of 

 the upper parts nearly snuff brown; otherwise not different, the pat- 

 tern of coloration being identical. 



Advlt male. — ^Length (skias), 124-135 (129); wiag, 105-115 

 (110.7); taU, 46.5-53.5 (49.7); culmen, from cere, 8.5-9.5 (9.1).* 



Adult female.— Ij&agih. (skins), 124-139 (132); wing, 106.5-112 

 (108.9); tail, 45-51 (47.2); culmen, from cere, 8-9.5 (8.8)." 



o This phase is bo exceptional that it is represented, in its extreme development, 

 by only one specimen in a series of fifty-three adults, the specimen in question being 

 the type, from Port Mojave, Arizona. 



6 Seven specimens from Arizona. 



" Ten specimens (nine from Arizona). 



