Double-crested Cormorant

Steve Forman photographed a double-crested cormorant, a pair of mallards, and a yellow-rumped warbler at Hager Pond in Marlborough.

Steve Forman photographed a double-crested cormorant, a tree swallow, and a family of Canada geese at Hager Pond in Marlborough.

Steve Forman photographed a double-crested cormorant and a great blue heron at Sudbury Reservoir in Southborough.

Steve Forman photographed great blue herons and double-crested cormorants at their nests on the Sudbury Reservoir in Southborough.