Large, heavy-bodied seabird with a long daggerlike bill. Adults have distinctive blue feet. Note dark bill.
Large, heavy-bodied seabird with a long daggerlike bill. Immatures are dark overall with variable amounts of white mottling on the back. Note paler head and white belly.
The underwings on immatures are mostly dark. Note pale head and white belly.
Large, heavy-bodied seabird with long pointy wings. In flight, note mostly dark underwings on immature birds.
Nests on the ground on islands. Forages at sea.
Immatures are mostly brown with a dark bill and a white belly. Often roosts on rocky islands.
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A large seabird with heavy, long, pointed bill, long, pointed wings, and relatively long tail.
Larger than a Great Black-backed Gull, smaller than a Northern Gannet.
goose-sized or largerThere are two subspecies: nebouxii is found over most of the species’ range, and the larger, paler excisa inhabits the Galápagos Islands.
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