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Gulls of Europe, Asia and North America by Klaus Malling Olsen and Hans Larsson is a volume in the Helm Identification Guides series of bird identification books. The book is intended to succeed Peter J. Grant's Gulls: A Guide to Identification as the standard identification work on Northern Hemisphere gulls.
The Pacific gull is a large white-headed gull with a distinctively heavy bill.. Gulls range in size from the little gull, at 120 grams (4 + 1 ⁄ 4 ounces) and 29 centimetres (11 + 1 ⁄ 2 inches), to the great black-backed gull, at 1.75 kg (3 lb 14 oz) and 76 cm (30 in).
The common gull (Larus canus) is a medium-sized gull that breeds in cool temperate regions of the Palearctic from Iceland and Scotland east to Kamchatka in the Russian Far East. Most common gulls migrate further south in winter, reaching the Mediterranean Sea, the southern Caspian Sea, and the seas around China and Japan; northwest European ...
The American herring gull or Smithsonian gull (Larus smithsonianus or Larus argentatus smithsonianus) is a large gull that breeds in North America, where it is treated by the American Ornithological Society as a subspecies of herring gull (L. argentatus). Adults are white with gray back and wings, black wingtips with white spots, and pink legs.
Western Gull in flight over the cliffs of Bodega Head. The western gull is a large gull that can measure 55 to 68 cm (22 to 27 in) in total length, spans 130 to 144 cm (51 to 57 in) across the wings, and weighs 800 to 1,400 g (1.8 to 3.1 lb). [3] [4] The average mass among a survey of 48 gulls of the species was 1,011 g (2.229 lb). [5]
The European herring gull (Larus argentatus) is a large gull, up to 66 cm (26 in) long. [2] It breeds throughout the northern and western coasts of Europe. Some European herring gulls, especially those resident in colder areas, migrate further south in winter, but many are permanent residents, such as in Ireland, Britain, Iceland, or on the North Sea shores.
The laughing gull (Leucophaeus atricilla) is a medium-sized gull of North and South America. Named for its laugh-like call, it is an opportunistic omnivore and scavenger . It breeds in large colonies mostly along the Atlantic coast of North America, the Caribbean , and northern South America.
The ring-billed gull is a medium-sized gull, having an average length of 43 to 54 centimetres (16.9 to 21.3 in) and a wingspan that ranges from 105 to 117 centimetres (41.3 to 46.1 in). Adults weigh from 300 to 700 grams (10.6 to 24.7 oz).