Canvasback Ducks (Aythya valisineria), Maryland, USA
Photo: Paul Bramble, Your Shot
A private tidal pond in Maryland’s Chesapeake Bay hosts thousands of overwintering canvasback ducks, seen here gathered at dawn.
"Witnessing so many at one spot is incredible." For this shot, Bramble employed a remote to allow the birds to move close enough to give a packed appearance. "As it was early morning, I set the camera to aperture priority to account for the changing light," he says.