ORNITnOLOGICAL EXPLORATIONS. 



107 



colored, the eye-stripe decidedly paler, and the rufous breast-band nar- 

 rower, showing:, besides, only a faint trace of the black line separating 

 the band from the white of the throat. 



9 ad. Breeding plumage {U. S. N. M.,No. 89052; L. Stojneger, No. 1042. Bering Island, 

 May 11, 1882). 

 Diffor.s from the male iu having the rufous parts much paler. The black markings 

 on the forehead are almost absent, and under the eyes and on the ear-coverts replaced 

 by bhickish. 



Other females of the collection show the markings on the head quite 

 distinct, but of a dark brownish gray, and not black color. The collar 

 is also much narrower. 



The young bird in first plumage, 



(No. 89050), resembles somewhat the adults. The brownish gray of the 

 back is paler, and each feather narrowly edged with Isabella color, with 

 which also the lower parts are suffused ; on the pectoral region a huff- 

 ish tinge replaces the rufous collar, and the black markings are absent 

 from the head, the cheeks and ear-coverts being slightly dusky; fore- 

 head between bill and eyes whitish, suffused with Isabella color. 



No. 92781 has only partly assumed the feathers. These are essen- 

 tially as in the specimen just described, but the isabella-colored edgings 

 are broad and the isabella suffusion stronger. Head and neck still 

 downy, whitish, on forehead and cheeks suffused with isabella color; 

 the latter parts with some blackish markings; crown of the head dark 

 brownish gray, mottled finely with isabella color. 



List of spi cimens collected. 



