Barn Swallow

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A mallard at Hager Pond in Marlborough, photographed by Steve Forman.
Steve Forman photographed mallards, tree swallows, wood ducks, an American crow, and a barn swallow at Hager Pond in Marlborough.
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A four-toothed mason wasp at Breakneck Hill Conservation Land in Southborough, photographed by Steve Forman.
Steve Forman photographed a four-toothed mason wasp, a red-tailed hawk, a barn swallow, and a tree swallow at Breakneck Hill Conservation Land in Southborough.
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A barn swallow at Hopkinton State Park, photographed by Steve Forman.
Steve Forman photographed these barn swallows at Hopkinton State Park.
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A barn swallow (bottom left) and a tree swallow at Mill Pond in Maynard, photographed by Dany Pelletier.
Dany Pelletier photographed a barn swallow, tree swallows, and a white-breasted nuthatch at Mill Pond in Maynard.