92 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



feet dusky (bluish gray or grayish bkie in life) ; length (skins), 132-160 

 (148); wing, 61.5-71.5 (67.8); tail, 62.,5-71 (67.1); culmen, 15.5-19 

 (17.4); tarsus, 22-24.5 (23.5); middle toe, 12-15 (13.4).« 



Immature male. — Similar to the adult male but black less intense 

 (more or less tinged with slate color), throat broadly streaked with 

 whitish, and (sometimes) chest and breast very narrowly streaked 

 with white; mandible pale horn color (in dried skins). 



Adult female. — ^Above plain slate color, the wings and tail marked 

 with white, as in adult male; chin and throat mixed black and white; 

 chest (except laterally) slate-black; breast (except laterally) black, 

 irregularly streaked or otherwise marked with white; rest of under- 

 parts (including sides of chest and breast), plain slate-gray, tinged 

 with olive posteriorly; maxilla brownish black with paler tomia; 

 mandible dull whitish (in dried skin) ; legs and feet horn color (bluish 

 gray in life?); lengtli (skin), 132-145 (138); wing, 60.5-63 (61.6); 

 tail, 52.5-64 (60); culmen, 16-17 (16.5); tarsus, 22-24 (22.8); middle 

 toe, 12-14 (13.1).'' 



Eastern Panamii (Lion Hill; Paraiso Station; Panama; Sabana de 

 Panama; San Miguel Island), through Colombia (Remedios, Antio- 

 quia; Santa Marta; Bucaramanga; Bogota; Rio Cauca) to M^estern 

 Ecuador (Babahoyo; Esmeraldas; Balzar Mountains; Pambilar; 

 Chimbo), Venezuela (Altagracia) and Trinidad. 



Cercomacra nigricans Sclater, Proc. Zool. Soc. Lond., 1858, 245 (Santa Marta, 

 Colombia; coll. P. L. Sclater); Cat. Am. Birds, 1862, 184 (Bogotd and Santa 

 Marta, Colombia; Babahoyo, Ecuador); Cat. Birds Brit. Mus., xv, 1890, 267 

 (Paraiso Station, Panama; Santa Marta, Remedios, Bogota, and Bucara- 

 manga, Colombia; Balzdr Mts. Santa Rita, Babahoyo, and Esmeraldas, 

 w. Ecuador). — Sclater and Salvin, Proc. Zool. Soc. Lond., 1879, 526 

 (Antioquia, Colombia). — Berlepsch, Jouni. fiir Orn., 1884, 308 (Bucara- 

 manga, Colombia). — Taczanowski and Berlepsch, Proc. Zool. Soc. Lond., 

 1885, 100 (Ecuador).— Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 

 215 (Lion Hill and Paraiso Station, Panamd; Ecuad6r; Venezuela; Triniddd; 

 etc.). — Berlepsch and Hartert, Novit. Zool., ix, 1892, 76 (Altagracia, 

 Venezuela; crit.), 612 (Pambildr, n. w. Ecuador). — Thayer and Bangs, 



