Double-crested Cormorant

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.

Steve Forman photographed a Canada goose, a double-crested cormorant, painted turtles, a great blue heron, a great egret, a killdeer, mallards, mute swans, a ring-billed gull, and a wood duck...

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

Steve Forman photographed a family of mallards, double-crested cormorants, a European starling, a family of mute swans, a common grackle, and painted turtles at Hager Pond in Marlborough.

Chris Errington photographed a wood duck in its eclipse plumage (late summer) and a double-crested cormorant along the Sudbury River in Lincoln.

Steve Forman photographed American crows, double-crested cormorants, a great blue heron, mute swans, an osprey, a red-tailed hawk, and wood ducks at Farm Pond in Framingham.

Victoria Holland photographed a double-crested cormorant, a great egret, a green heron, and mute swans at the Southborough Open Land Trust's Beals Preserve and along the Boroughs Loop Trail in...