Hooded Merganser

Ron McAdow photographed these hooded mergansers on Boyce Pond in Lincoln.

Steve Forman photographed hooded mergansers and a bald eagle at the Sudbury Reservoir in Southborough.

Steve Forman photographed a ring-billed gull, Canada geese, a great blue heron, a hooded merganser, ring-necked ducks, a great blue heron, mute swans, and wood ducks at Hager Pond in...

Steve Forman photographed hooded mergansers at Chauncy Pond in Westborough.

Steve Forman photographed mute swans, wood ducks, a bald eagle, hooded mergansers, and a mallard at Hager Pond in Marlborough.

Dan Trippe photographed hooded mergansers, ring-necked ducks, a belted kingfisher, pine warblers, American woodcock chicks, a blue-gray gnatcatcher, barn swallows, a palm warbler, a yellow-rumped warbler, a common grackle, an...

Jon Turner photographed hooded mergansers and a white-breasted nuthatch in Harvard.

Steve Forman photographed a common merganser, mute swans, a Canada goose, a hooded merganser, a greater scaup, and ring-necked ducks at Hager Pond in Marlborough.

Steve Forman photographed Canada geese, mute swans, a common merganser, a greater scaup, ring-necked ducks, a bald eagle, a mallard, a song sparrow, a hooded merganser, northern pintails, and a...

Steve Forman photographed Canada geese, hooded mergansers, a common merganser, and bald eagles at Hager Pond in Marlborough.