870 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



brownish); iris light piirphsh red or pinkish; legs and feet dusky 

 (bluish gray or plumbeous in life); length (skins), 188-211 (192); 

 wing, 115.5-128 (122.5); tail, 64.5-74.5.(70.4); exposed culmen, 23.5- 

 26.5 (24.5); tarsus, 24.5-26.5 (25.4); middle toe, 18-20 (18.9) .« 



Adult female. — Pileum, nape, auricular region, and malar region 

 deep to dark sooty brown (deep grayish warm-sepia to between clove 

 brown and seal brown), the feathers pale gray and white beneath 

 surface; rest of upper parts plain deep grayish brown, becoming paler 

 and decidedly grayer (nearly smoke gray) on lower rump and upper 

 tail-coverts, the hindneck also sometimes suffused with grayish; 

 wings much as in adult male but black of remiges, etc., duller, gray 

 of coverts and tertials duller and more or less tinged with brownish, 

 the latter mostly grayish brown, edged with pale gray; tail much as 

 in adult male but the black subterminal area more extended, duller 

 black, the line of demarcation between this and the basal gray much 

 less abruptly defined, the gray duller or darker; under parts pale 

 gray or grayish white fading into white on throat and into white or 

 grayish white on under tail-coverts; bill, legs, and feet as in adult 

 male; length (skins), 18.3-223 (197); wing, 112-126 (119.1); tail, 

 64.5-70 (67.7); exposed culmen, 22.5-26.5 (24.8); tarsus, 23.5-26.5 

 (25.2); middle toe, 17-20 (19.4). & 



Young male (first plumage). — Essentially like adult females, but 

 paler grayish brown above, the pileum indistinctly spotted with 

 darker, the feathers of back and scapulars with an indistinct darker 

 subterminal and a paler, more buffy, terminal bar; under parts nearly 

 pure white. 



Panama (Lion Hill; Boquete; Bugaba; David; Calovevora), 

 Costa Rica (San Jose; Guaitil; Barranca; Cache; Dota; La Cande- 

 laria; Naranjo de Cartago; Turrialba; Bonilla; Carillo; JuanVinas; 



a Twenty specimens. 

 b Nineteen specimens. 



Adult females from Panama average petceptibly paler and grayer brown above than 

 those from Costa Rica and northward, thus showing a slight approach toward T. s. 

 coluvibianns, of northern Colombia. 



