This is a large and powerful gull, very pale in all plumages, with no black on either of the wings or the tail. The term glaucous describes its colouration. Adults are pale grey above, with a thick yellow bill. Immatures are very pale grey with a pink and black bill. This species is considerably larger, bulkier and thicker-billed than the similar Iceland Gull. They can weigh anywhere from 960 to 2,700 g, averaging 1.55 kg in males and 1.35 kg in females.
Habitat and Distribution
The Glaucous Gull breeds in the Arctic regions of the northern hemisphere and the Atlantic coasts of Europe. It is migratory, wintering from in the North Atlantic and North Pacific oceans as far south as the British Isles and northernmost states of the USA, also on the Great Lakes. A few birds sometimes reach the southern USA and northern Mexico. They breed on coasts and cliffs.
These are omnivores like most Larus gulls, and they will eat fish, insects, molluscs, starfish, offal, scraps, eggs, small birds, small mammals and carrion as well as seeds, berries and grains.
They make a lined nest on the ground or cliff. Normally, 2-4 light brown eggs with dark chocolate splotches are laid.
Calls and Songs
The call is a `laughing` cry similar to that of the Herring Gull but deeper.