Todd : A Revision of thi Genus Ch^emepelia. 589 



Description. — Similar to C. talpacoti, bul wings extensively rufous. 

 Adull male: above, including wing-coverts, tertiaries, and two middle 

 rectrices, rich vinaceous chestnut or cinnamon vinous; below similar 

 but paler, lading to nearly white on the chin; crown dull plumbeous, 

 becoming much paler and sometimes .tinged with vinou on the 

 forehead: remiges rufous chestnut, tipped with brown, and the 

 secondaries also often clouded with brown; primary-coverts rufous 

 chestnul with black tips; inner wing-coverts, scapulars, and tertiaries 

 marked on the outer webs with irregular spots of glossy black; axil- 

 laries and inner under wing-coverts black; outer under wing-coverts 

 rufous chestnut; rectrices (except middle pair as aforesaid) black, the 

 outer pair tipped and edged externally with vinaceous chestnut, the 

 pair next to the middle often also extensively of this color; iris red or 

 pink; bill dull olive or drab, dusky at tip; feet flesh-color. 



Female similar, but decidedly duller and paler: above olive-brown, 

 usually more or less tinged with vinaceous chestnut, especially poster- 

 iorly; wings and tail as in the male, but the former with the outer 

 webs of the remiges more or less extensively brown; outer web of outer 

 rectrices paler, white or whitish; below pale brownish, with more or 

 less of a vinous tinge, the throat white or nearly so, and the under tail- 

 coverts edged with white or vinaceous cinnamon. 



Immature birds (i. e., those in first winter or first nuptial dress) 

 may be distinguished by their generally duller coloration, and by the 

 greater extent of the brown area on the wings, the inner secondaries 

 being largely brown. In juvenal plumage the young bird closely 

 resembles the female, but the feathers of the back, scapulars, wing- 

 coverts, and anterior under parts are narrowly tipped with bully, 

 giving a squamate appearance, and the black spots on the wings and 

 scapulars lack gloss. 



The sexual differences in this species correspond to those of C. 

 talpacoti, while females average more brown on the wings than males. 

 It the sexing of certain specimens can be trusted, it would appear that 

 some females approximate the males in general intensity of color. 

 Three females from the Pearl Islands, Bay of Panama, agree in being 

 much browner below than the average of specimens from other locali- 

 ties — a fact which may be of some significance as indicating the 

 existence of an insular form, although no difference in the males is 

 evident. 11 



11 It would seem that Messrs. Thayer and Bangs could not have compared their 



