KEY TO THE WATER BIRDS OF FLORIDA. l6l 



Length, 17: Wing, 7.50; Tarsus. 1.30: Bill, 1.75. 



Head black with violet gloss; speculum gray. Aythya collaris (male). 



Ring=neck Duck. See page 229 



Length, 16.50; Wing. 8.25: Tarsus. 1.40; Rill, 1.60. 



Head brown ; speculum white. QIaucionetta clangula ameri= 



cana (female). 

 American Golden Eye. 

 Whistler. See page 2;, r 



Hind toe with well=defined membranous lobe or flap. 



Belly white, sometimes grayish or blackish on lower part. 

 Head showing more or less white or grayish white. 



S^""^ 



^ 



G'aucioiiett.1 clangula americana. Clangula hyemalis. 



Length, including lengthened tail. 21 : Wing, S.50; Bill, 

 I. Tail pointed; central feathers longest ; under 

 tail coverts white. 



Clangula hyemalis. 



Old Squaw. See page 23: 



Length, 17.75; Wing, S. 25 : Tarsus, r.30; Bill, 1.60. 

 Head brownish showing white at base of bill ; 



speculum Avhite. Aythya marila nearctica 



(female). 

 Greater Scaup Duck. 

 Length, 16.50; Wing, 7.70: Tarsus, 1.25; Bill, 1.50. BIue=bill. See page 22S 



Similar to preceding, but somewhat smaller. 



Aythya af finis (female). 

 Lesser Scaup Duck. 

 Blue-bill. See page 229 



