808 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



subauricular spot, margined posteriorly by a blackish bar; throat 

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

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

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

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

 grayish and cinnamon prevailing anteriorly, the colored areas nar- 

 rowly and irregularly barred with dusky; under tail-coverts white, 

 with subterminal irregular spots of pale buffy 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; under surface of remiges with 

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

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

 dried skins) with yellowish tomia; iris lemon yellow. 



Young. — Similar to adults but pUeum nearly immaculate deep 

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

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

 with white and light brownish gray narrowly barred with darker. 



Brown phase. o^ 



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. 



Adult maZe.— Length (skins), 124-135 (129); wing, 105-115 

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



Adult female.— Length, (skms), 124-139 (132); wing, 106.5-112 

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



« This phase is so 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 Fort Mojave, Arizona. 



^ Seven specimens from Arizona. 



c Ten specimens (nine from Arizona) . 



