BIEDS or NORTH AND MIDDLE AMEBICA. 429 



or interrupted, submalar streak; chin, throat, and median portion of 

 upper foreneck immaculate white; sides of upper foreneck, chest, 

 and lateral portion of upper breast deep chestnut-rufous or rufous- 

 chestnut; rest of under parts white, the sides and flanks heavily 

 spotted with greenish black, this heavy spotting sometimes extending 

 across lower breast ; under tail-coverts with larger or smaller roundish, 

 subcordate, or transverse spots of greenish black; axillars and under 

 wing-coverts white, the former spotted with dusky the latter with a 

 large V-shaped area of the same; inner web of remiges with large 

 spots of white; bUl black, usually paler at tip and on basal portion 

 of gonys; iris dark brown; legs and feet dusky (in dried skins); 

 length (skins), 176-205 (189); wing, 79-83 (81.3); tail, 53.5-59 (56.6); 

 exposed culmen, 43.5-50 (46.8); tarsus, 8-9.5 (9); middle toe, 11-12.5 

 (11.7).« 



AduU female. — Similar to the adult male but without any chestnut- 

 rufous or rufous-chestnut, the upper chest immaculate buffy white or 

 pale buff (like foreneck, throat, and chin), the lower chest crossed by 

 a broad band heavily spotted with greenish black, the lower breast 

 also with a similar, but usually less distinct, band; white of under 

 parts more or less tinged with buflf, especially the chin, throat, and 

 upper chest, which are sometimes wholly light buff; length (skins), 

 177-204 (189); wing, 79-86 (83.2); tail, 55-60.5 (57.7); exposed cul- 

 men, 40-50 (47.1); tarsus, 9-10 (9.5); middle toe, 12-13 (12.4).» 



Young male. — Similar to the adult female, but chest more or less 

 suffused or intermixed with chestnut-rufous or cinnamon-rufous. 



Young female. — Similar to the adult female but markings on chest 

 in form of broad streaks rather than transverse spots. 



Panama (Lion HjU; Chepo; Paraiso; Rio Lara; Rio Indio; Rio 

 Trinidad; Rio Cano Quebrada; Puerto BeHo; Gattin; Cerro Aztil; 

 Sabana de Panama ; David and Divala, ChiriquI; Calov^vora and 

 Calobre, Verdgua), and northward through Costa Rica (San Jos6; 

 San Carlos; Cartago; Naranjo de Cartago; La Palma de Nicoya; 

 Volcan de MiravaUes; Rio Frio; Jimenez; Bonilla; Talamanca), 

 Nicaragua (Bluefields; Chontales; San Juan del Sur; Sucuyft; Los 

 Sabalos; Omotepe; Momotombo; Matagalpa; Rio Escondido), Hon- 

 duras (Lake Yojoa; San Pedro; TruxiUo; Rio Seg6via; Yaruca), 

 British Honduras (BeMze; Cayo; Old River), Salvad6r (La Liber- 

 tad), and Guatemala (Rio Dulce; Tollman; Duenas; Rio Guaca- 

 late; San Ger6nimo; Huamuchal; Cajab6n; Palin; Los Amates, 

 Yzabal; Lake Atitlan) to Chiapas (San Benito). 



o Twenty-two specimens. 



6 Twenty-three specimens. (For average measurements of specimens from different 

 countries in Central and South America see under C. a. septentrionalis, on p. 431.) 



