A bevy of tundra swans (Cygnus columbianus) and a variety of other migratory birds are currently on Pea Island, Alligator River and other regional national wildlife refuges. Mostly plant eaters, on the water, tundra swans eat leaves, stems, grasses and tubers of aquatic plants. On land, they feed in fields after crops such as soybean, barley, wheat, corn … Continue reading Tundra swans: Seasonal visitors return