A Seagull stands on one leg at the Santa Monica Pier on July 18, 2008. Gulls (often informally Seagulls) are birds in the family Laridae. They are typically medium to large birds, usually grey or white, often with black markings on the head or wings. They typically have harsh wailing or squawking calls. They have stout, longish bills, and webbed feet. Most gulls, particularly Larus species, are ground nesting carnivores, which will take live food or scavenge opportunistically. The live food often includes crabs and small fish. Apart from the kittiwakes, gulls are typically coastal or inland species, rarely venturing far out to sea.at the Santa Monica Pier on July 18, 2008.