Gulls are seabirds in the family Laridae and subfamily Lari. They are
closely related to the terns, and more distantly to the waders, auks and
skimmers. Most gulls belong to the large genus Larus. They are in general
medium to large birds, typically grey or white, often with black markings on
the head or wings. They have stout, longish bills and webbed feet. Most
gulls, particularly Larus species, are ground nesting omnivores, which will
take live food or scavenge opportunistically.