463 



Descriptions. 



Adult. — Feathers of the pileiiiu recurved, narrow, obtuse, aud of 

 velvety texture; those of tlie ueck (all round) lanceolate, acute; tibial 

 plumes well developed, fluffy. Colors deep black aud pure white, in 

 well-deflued, large uniform areas, as follows: Abdomen, anal-region, 

 crissum, flanks, tibiie, upper tail-coverts, lining of the wings, tips of 

 the outer three or four primaries, of all the secondaries (forming a 

 narrow bar), tips of the tail-feathers (forming a wide baud), aud bases 

 of the rectrices and remiges, pure white. Ocher portions carbonaceous- 

 black, becoming smoky-grayish or fuliginous on the throat and chin, 

 but with a faint bluish-green gloss on the nape and back, and very 

 sharply defined posteriorly, with a convex outline against the white of 

 the abdomen, etc. Bill white, dusky olive-plumbeous basally ; cere and 

 naked loral and maxillary regions reddish in life; iris — 2 feet very pale 

 (pale yellow in life!?); claws colored like the bill. 



Young. — Feathers of the pileum recurved only on the frontlet, and 

 "with those on the ueck soft velvety and blended. The black replaced 

 "with brown (varying from sepia through chocolate to almost a chestnut 

 shade), and the white with ochraceous. Basal portion of the primaries 

 pale ochraceous, finely mottled with dusky ; tail-feathers ochraceous 

 for their whole length, edged witlr sepia, the middle ones nearly uni- 

 formly of the latter color. 



Bemarls. 



A specimen in very young plumage (No. 1(323, museum of Wesleyau 

 University, Middletown, Conn.) corresponds with tlie above description, 

 taken from examples in the museum of the Philadelphia Academy, and 

 has the larger wing-coverts as well as the remiges terminated by deltoid 

 spots of ochraceous. In the immature plumage, the light and dark areas 

 are not separated so definitely as iuthe adult, while the whole plumage 

 is of a totally different texture, being remarkably soft and downy. 



Another s])ecimen in the collection of the Wesleyau University (No. 

 1620), in transition dress, is somewhat peculiarly plumaged. The feathers 

 have the texture of the adult stage, those of the entire pileum being 

 recurved, and those on the neck lanceolate aud pointed; but the colors are 

 those of the young stage, with a few scattered feathers of the new molt 

 corresponding with the same in the complete li very. The tail is like that 

 of the young stage, except that there is a sharply-defined terminal band of 

 ochraceous white (narrower than iuthe adult), preceded by a continuous 

 dusky one, whose basal edge blends gradually iuto the umber-brown, which 

 forms the general hue of the tail ; the medial portiou of each feather (com- 

 I)rising nearly the whole of the inner web anterior to the terminal and sub- 

 terminal bands) is deep ochraceous; the primary-coverts are tipped and 

 irregularly banded with whitish, while the feathers of the flanks are 

 tipped with the same ; the upper tail-coverts are scantily spotted with 

 brown. 



This specimeu exhibits a plumage exactly intermediate between that 

 of the youngest and most adult stages, and was probably acquired after 

 the first molt. 



List of specimens in United States Xational Mi(seH7n. 



Locality. 



Chili . 

 Cliili 



When col- 

 lected. 



June, 1864 



Sept., 1865 



From whom received. 



National Musenm of Cliili. 

 National Museum of Chili. 



2 3 



^{/i 



M. 



M. 



