Gadwall

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An American black duck (foreground) and a mallard on Lake Chauncy in Westborough, photographed by Nancy Wright.
Nancy Wright photographed an American black duck, a mallard, common mergansers, and a gadwall on Lake Chauncy in Westborough.
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A bald eagle at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed a bald eagle, a gadwall, and a lesser scaup at Hager Pond in Marlborough.
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A gadwall at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed a pair of gadwalls at Hager Pond in Marlborough.
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A common goldeneye at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed common goldeneyes, a gadwall, mallards, and a mute swan in Marlborough.
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Birds at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed hooded mergansers, gadwalls, northern pintails, mallards, a ring-billed gull, and a mute swan at Hager Pond in Marlborough.
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A Canada goose at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed Canada geese, gadwalls, and hooded mergansers at Hager Pond in Marlborough.