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Species Description- American Black Duck
Anas rubripes

American Black Duck
American Black Duck
Anas rubripes
Seneca County, NY

***Federal - MBTA***
***NY - Game Species***

    This dabbling duck is very closely related to the Mallard.  In fact, the two hybridize frequently.  A summer breeder and winter resident, Black Ducks are dark brown to black, with a contrasting gray head, and a purple speculum (wing patch.)  Males have a yellow bill, females are similar but are slightly paler brown and have a dull green bill with black spots.  Where they coexist Black Ducks prefer forested areas where Mallards prefer open marshes.  In areas of heavy deforestation (much of NY) the two have come into contact and there is evidence that female Black Ducks choose male Mallards to breed.  Hybrids show a blending of characteristics, being dull like a Black Duck, but with traces of the Mallard color.  This loss of habitat and genetic pollution by Mallards is causing a continued decline in Black Duck numbers and there are special regulations in effect on the hunting of Blacks in order to help combat the decline.


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