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FULVOUS TREE-DUCK. 

 DendTocygna fulva. 



BLACK DUCK. 

 Anas obscura. 



gadwall: gray duck. 



Chaulelasmus strepera. 



AMERICAN WIDGEON. 

 Alareca amcricana. 



GREEN-WINGED TEAL. 

 Nettion carolinensis. 



SCAUP DUCK. 

 Aythya mariia. 



EING-NECKED DUCK. 

 Aythya collaris. 



BARROW S COLDBN-EYE. 

 Clangula islandica. 



OLD SQUAW. 

 Harelda hyemalis. 



HARLEQUIN DUCK. 

 Histrionicus histrionicus. 



SURF SCOTER. 

 Oidemia pers-pic-Ulata. 



AMERICAN SCOTER. 

 Oidemia americana. 



