Brown-headed Cowbird

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A brown-headed cowbird at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed a brown-headed cowbird, a house finch, a northern flicker, and a northern mockingbird at Breakneck Hill Conservation Land in Southborough.
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A brown-headed cowbird at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed a brown-headed cowbird and European starlings at Breakneck Hill Conservation Land in Southborough.
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An American robin at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed an American robin, a brown-headed cowbird, a northern cardinal, and a red-winged blackbird at Breakneck Hill Conservation Land in Southborough.
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A brown-headed cowbird fledgling begs for food from a yellow warbler at Upton State Forest.
Eileen Samberg photographed this yellow warbler feeding a brown-headed cowbird fledgling at Upton State Forest. Brown-headed cowbirds are known as "brood parasites;" the female will lay eggs in other birds...
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A bee at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed a bee, a brown-headed cowbird, a ruby-throated hummingbird, and a willow flycatcher at Breakneck Hill Conservation Land in Southborough.
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A brown-headed cowbird in Framingham, photographed by Steve Forman.
Steve Forman photographed a brown-headed cowbird, a gray catbird, a house finch, and a tufted titmouse in Framingham.
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A fisher at SVT's Memorial Forest in Sudbury, photographed by Debbie Howell.
Debbie Howell photographed a fisher, a tree swallow, a brown-headed cowbird, a chipping sparrow, a palm warbler, eastern bluebirds, and an eastern towhee at SVT's General Federation of Women's Clubs...
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A brown-headed cowbird at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed a brown-headed cowbird, an eastern bluebird, European starlings, and a red-tailed hawk at Breakneck Hill Conservation Land in Southborough.
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An American goldfinch in Sudbury, photographed by Sharon Tentarelli.
Sharon Tentarelli photographed an American goldfinch, brown-headed cowbirds, a chipping sparrow, an eastern bluebird, and a red-winged blackbird in Sudbury.
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A brown-headed cowbird in Framingham, photographed by Joan Chasan.
Joan Chasan photographed this brown-headed cowbird in Framingham.