American Black Duck is very similar to Mallard, but noticeably darker. The two species can hybridize.
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American Black Duck
Hammonasset State Park, Madison, CT
November 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
November 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
November 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
November 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
November 21, 2006 ©John Schwarz
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Mallard X American Black Duck Hybrid
Hammonasset State Park, Madison, CT
November 21, 2005 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
September 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
September 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
September 21, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
November 16, 2006 ©John Schwarz
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American Black Duck
Hammonasset State Park, Madison, CT
March 30, 2007 ©John Schwarz
