BIRDS OF KOETH AND MIDDLE AMERICA. 



167 



darker on pileum, and passin<i; into chestnut on lower rump and 

 upper tail-coverts; tail darker sepia brown, passing into blackish 

 brown terminally; cliin and throat dull tawny-rufous or rufous-tawny 

 (the chin sometimes decidedly paler, rarely dull whitish), passing into 

 deeper ta\vny-rufous or tawny-chestnut on chest ; rest of under parts 

 plain brown (nearest mummy bro\vn), sometimes tinged with more 

 rufescent bro\vn, especially on breast and under tail-coverts; under, 

 wing-coverts mixed tawny and grayish brown; maxilla dusky horn 

 color or blacldsh, mandible pale yellowish or dull whitish (in dried 

 skins), dusky or horn colored terminally and along tomia; iris hazel;" 

 legs and feet horn color or ckisky (in dried skins). 



Young. — Similar to adults, but colors rather duller, especially on 

 throat and chest, which are dull tawny or tawny-brown, some of the 

 feathers with very indistinct shaft-streaks of paler and (sometimes) 

 with narrow and indistinct terminal margms of duller brown or 

 dusky. 



Adult 77iale.—hength. (skms), 142-163 (154); wing, 78-83 (80.5); 

 tail, 51-62 (56.2); culmen, 23-27 (24.7); tarsus, 20-22 (21.2); middle 

 toe, 16-17.5 (17).^ 



Adult female . — Length (skin), 158; wing, 80; tail, 56.5; culmen, 24; 

 tarsus, 20.5; middle toe, 17.5.*^ 



Southeastern Mexico, in States of Vera Cruz (Cordova; Potrero, 

 near Cordova; Jico; Jalapa; Orizaba), and Mexico (City of Mexico), 

 Guatemala (Coban; Raxche; Savana Grande; Volcan de Agua), Hon- 

 duras (Volcan de Puca, Department of Copan), Costa Rica (Cari- 

 blanco de Sarapiqui), Panama (Lion Hill; Panama; Calovevora; 

 Cordillera de Tole; Santiago de Veragua) and southward through 

 Colombia (Bogota; Frontino) and Ecuador (Intaj; Sarayacu) to Peru 

 (Yurimaguas; Chyavetas) and lower Amazon (Rio Capnn).^ 



(?) "Sckrunis ruficollis Swainson, Birds Brazil, ["1834-41"], pi. 79." 

 Sderurus mexicanus Sclater, Proc. Zool. Soc. Lond., 1856 (pub. Jan. 26, 1857), 

 290 (Cordova, Vera Cruz, Mexico; coll. P. L. Sclater); 1859, 365 (Jalapa, 

 Vera Cruz); 1864, 175 (City of Mexico); Cat. Am. Birds, 1862, 145, pi. 12 



o W. W. Brown, jr., on label. 

 & Seven specimens, 

 c One specimen. 



^ South American specimens not seen by me. 



