Double-crested Cormorant

Steve Forman photographed a killdeer, a ring-billed gull, a great blue heron, a mallard, a double-crested cormorant, a house sparrow, and wood ducks at Hager Pond in Marlborough.

Steve Forman photographed double-crested cormorants, a red-winged blackbird, a downy woodpecker, a mallard, and a ring-billed gull at Hager Pond in Marlborough.

Jim DeLuco photographed eastern kingbirds, a wood duck, and a double-crested cormorant at Bruce's Pond in Hudson.

Joan Chasan photographed this double-crested cormorant at Bruce's Pond in Hudson.

Steve Forman photographed a mallard duckling, a double-crested cormorant, and a painted turtle at Hager Pond in Marlborough.

Steve Forman photographed painted turtles, double-crested cormorants, a warbling vireo, a great blue heron, least sandpipers, mallards, mute swans, an eastern kingbird, a European starling, a baskettail dragonfly, a barn...

Steve Forman photographed a double-crested cormorant, hooded mergansers, and a ring-necked duck at Foss Reservoir in Framingham.

Steve Forman photographed a double-crested cormorant and a great blue heron at Hager Pond in Marlborough.

Steve Forman photographed Canada geese, a double-crested cormorant, a killdeer, and mallards at Hager Pond in Marlborough.

Steve Forman photographed a double-crested cormorant at Hager Pond in Marlborough.