Mallard

Gail Sartori photographed Canada geese, ring-necked ducks, and a mallard at Dudley Pond in Maynard.

Steve Forman photographed a mating pair of mallards at Hager Pond in Marlborough.

Steve Forman photographed American coots, a mallard, a mute swan, and ring-billed gulls at Hager Pond in Marlborough.

Steve Forman photographed these mallards at Hager Pond in Marlborough.

Steve Forman photographed Canada geese and mallards at Hager Pond in Marlborough.

Gail Sartori photographed a mallard, a Canada goose, and a great blue heron at SVT's Upper Mill Brook Conservation Area in Wayland.

Steve Forman photographed Canada geese and a mallard at Hager Pond in Marlborough.

Gail Sartori photographed a mallard on Dudley Pond in Wayland.

Steve Forman photographed a mallard, a mute swan, and an osprey at Hager Pond in Marlborough.

Jim DeLuco photographed a mallard (left) and two wood ducks at Bruce's Pond in Hudson.