26 key to the water birds of florida. 



Subfamily FULIGULIN^^. Bay and Sea Ducks. 



Ducks having flap or membranous lobe on hind toe. 



Genus AYTHYA Boie. 





AYTHYA AMERICANA {Eyt.). 

 Red=head Duck. 



Adult Jiialc : Head and neck brownish chestnut ; lower neck and upper breast black- 

 ish ; back apparently grayish being pencilled with wavy lines of black ; speculum grayish ; 

 upper feathers edged with black, the rest narrowly tipped with white. 



Length, 21 : Wing. 8.40; Tarsus, 1.60: Bill, 2.20. 



Adult female : Bill bluish showing an indi.stinct bar near the end ; head and neck reddish 

 l)rown, palest on the sides of the head, becoming ashy on the sides of the head ; upper throat 

 white ; breast and sides brownish ; belly white ; under tail coverts and lower belly sometimes 

 washed with pale brownish. 



Length, 20.50; Wing, 8.30; Tarsus, 1.60; Bill, 2.20. 



This is rather a Western species, as it breeds very rarely on the Athintic 

 coast of the United States. It is common in the West breeding from 



