American Herring Gull

The American Herring Gull or Smithsonian Gull (Larus smithsonianus) or (Larus argentatus smithsonianus) is a large gull which breeds in North America, where it is treated by the American Ornithologists' Union as a subspecies of Herring Gull (L. argentatus).

Adults are white with gray back and wings, black wingtips with white spots, and pink legs. Immature birds are gray-brown and are darker and more uniform than European Herring Gulls, with a darker tail.