aves podicipedid^. 8 1 



General description. 



Size (adult male). — Total length, about 14 inches. 

 Culmen (from feathers on forehead), 0.75 to i inch. 

 Wing, 5.1 to 5.6 inches. 

 Tarsus, 1.6 to 1.8 inches. 

 Adult Female: Total length, about 12 inches. 

 Culmen (from feathers on forehead), 0.7 to 0.9 inches. 

 Wing, 4.6 to 5 inches. 

 Tarsus, 1.35 to 1.6 inches. 



The adult males of this species are decidedly larger than the adult 

 females. 



Coloy (adult breeding). — General color above dark glossy brown. 



Fig. 47. Fig. 48. 



Podilynibus poduipcs. Profile of head Podilymbiis poduipes. Profile of head 



and neck. Adult in winter. ;^ natural and neck. Young of the year. Y^. nat- 



size. - ural size. 



Lower breast and belly silvery white with some dusky mottling. On the 

 sides and flanks dark brown with rufous mottling. 



Head : Crown dark brown inclining to blackish. Sides of head and face 

 below the eyes sandy ash. 



Neck : Sandy ash below becoming dark brown like the crown above. 

 The throat and extreme upper fore neck deep black, which extends as a 

 slight bar back of base of the lower mandible upward to the gape. 



Back : Dark glossy brown with some ashy washing, depending on the 

 freshness of the plumage. 



Wings : Much like the back. The primary and secondary quills ashy, 

 inclining to white on their inner webs, and this condition progressing so 



