Black Skimmer, Merritt Island, Florida

The black skimmer is named for its characteristic style of feeding. It glides just above the water line, skimming the surface with the lower part of its beak, or mandible. When the lower mandible senses a fish, the upper mandible snaps down for the catch. This image doesn’t show that behavior, but clearly displays the beak. Photographed on Merritt Island on the east coast of Florida. Nikon D300 with Nikkor 200-400mm lens (at 340mm) ISO 400, f/7.1 at 1/1600th of a second.