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1by Nelson, Eric T.“... ducks were American wigeon {Anas americana) and American green-winged teal (Anas crecca carolinensis...”
Published 1989
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Master Thesis -
2by Johnsgard, Paul A., Fowler, Eric, Forsberg, Michael, Brown, Mary Bomberger, Ebbeka, Dee, Loomis, Jacki, Freeman, Patricia W“... strepera) Green-winged Teal (Anas crecca) Mallard (Anas platyrhynchos) American Black Duck (Anas rubripes...”
Published 2014
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