438 



BULLETIN '50, UNITED STATES NATIONAL MUSEUM. 



of upper breast, etc., by a broad band of greenish black, the feathers 

 of which are more or less distinctly margmed at tip with white, some 

 of them with UTegular concealed white spots; length (skhis), 120-141 

 (131); whig, 55.5-60 (59.3); tail, 34-38.5 (36); culmen, 27.5-34 

 (31.2); tarsus, 7-8 (7.6); imier anterior toe, 8-9.5 (8.5).« 



Young male. — Similar to the adult male but color of under parts 

 paler and much duller, the dim, throat, foreneck, malar region, and 

 sides of neck light orange-buff (paler on chui), the chest, upper breast, 

 sides, and flanks rufous-tawny, mdistinctly streaked on chest with 

 blackish; secondaries usually with distinct (often conspicuous) 

 whitish spots. 



Young female. — Similar to the adult female but coloration of under 

 parts paler and duller (as in young male) and jugular band narrower 

 and more broken medially. 



Western Costa Rica (Bebedero ; Bolson; Punta Arenas; La Palma 

 de Nicoya; Talamanca), Panama (Divala; Lion Hill; Gatun; 

 Darien; Rio Indio; Puerto Cabello; Obispo), and southward through 

 Colombia, Venezuela, the Guianas, and Amazon Valley to eastern 

 Peru (Pebas; Chayavetas) and southern Brazil (Chapada, Matto 

 Grosso; Iguape, Sao Paulo; Bahia; Pernambuco; etc.). 



o Eighteen specimens. 



