f 



FULVOUS TREE-DUCK. 



Dendrocygna fulva. 



BLACK DUCK. 



Anas obscura. 



GADWALL: GRAY DUCK. 



Chaulelasmus strcpera. 



AMERICAN WIDGEON. 



Mareca americana. 



GREEN-WINGED TEAL. 



Nettion carolinensis. 



SCAUP DUCK. 



Aythya marila. 



