AVES PODICIPEDID^E. 



8l 



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. 



Color (adult breeding). General color above dark glossy brown. 



FIG. 47. 



FIG. 48. 



Podilymbus podicipes. Profile of head 

 and neck. Adult in winter. y 2 natural 

 size. 



Podilymbus podicipes. Profile of head 

 and neck. Young of the year. y 2 nat- 

 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 



