Seabirds are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the
The sooty tern is highly aerial and marine and spends months flying at sea, returning to land only for breeding.
Raft of coastal seabirds Gulf of St. Lawrence, Quebec, Canada
The Cretaceous seabird Hesperornis
Cormorants, like this double-crested cormorant, have plumage that is partly wettable. This functional adaptation balances the competing requirement for thermoregulation against that of the need to reduce buoyancy.
Gulls, informally called seagulls, are seabirds of the subfamily Larinae. They are most closely related to terns and skimmers, and are placed with them in the family Laridae. They are also related, mo
Seabird
…gannets, boobies, frigatebirds, and cormorants) except the darters, one family of the Pelecaniformes (pelicans), and some of the Charadriiformes (gulls, skuas, terns, auks, and skimmers) are classified as seabirds. The phalaropes are usually included as well, since although they are waders ("shorebirds…
Herring Gull, Brighton, England
Immature (probably 2nd year) Armenian gull in flight, flying over Lake Sevan
The Pacific gull is a large white-headed gull with a distinctively heavy bill.
Swallow-tailed gulls are endemic to the Galapagos Islands.