Tree Swallow

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Canada geese at Grist Mill Pond in Sudbury, photographed by Steve Forman.
Steve Forman photographed Canada geese, tree swallows, a great blue heron, a muskrat, and red-winged blackbirds at Grist Mill Pond in Sudbury.
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A pair of tree swallows at Mass Audubon's Broadmoor Wildlife Sanctuary in Natick, photographed by Joan Chasan.
Joan Chasan photographed this pair of tree swallows at Mass Audubon's Broadmoor Wildlife Sanctuary in Natick.
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A common grackle at Bartlett Pond in Northborough, photographed by Steve Forman.
Steve Forman photographed a common grackle, a mute swan, ring-necked ducks, a great blue heron, a tree swallow, wood ducks, and a painted turtle at Bartlett Pond in Northborough.
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Mating tree swallows in Grafton, photographed by Nancy Wright.
Nancy Wright photographed this mating pair of tree swallows in Grafton.
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An American goldfinch at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed an American goldfinch, a bee, a cabbage white butterfly, tree swallows, a red-tailed hawk, and a ruby-throated hummingbird at Breakneck Hill Conservation Land in Southborough.
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A great blue heron with a fish at Great Meadows National Wildlife Refuge in Concord, photographed by Steve Forman.
Steve Forman photographed a great blue heron with a fish, a marsh wren, a red-winged blackbird, a tree swallow catching a feather, and a warbling vireo in its nest at...
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A gray catbird at SVT's Smith Conservation Land in Littleton, photographed by Jon Turner.
Jon Turner photographed a gray catbird, a hermit thrush, a red-winged blackbird, and tree swallows at SVT's Smith Conservation Land in Littleton.
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An American goldfinch at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed an American goldfinch, a northern cardinal, a red-tailed hawk, a pair of red-winged blackbirds, and a tree swallow at Breakneck Hill Conservation Land in Southborough.
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An American goldfinch at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
An American goldfinch and a tree swallow at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
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A tree swallow at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed a tree swallow, a mallard, a mute swan, and a painted turtle at Hager Pond in Marlborough.