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The adult great black-backed gull is fairly distinctive, as no other very large gull with black on its upper-wings generally occurs in the North Atlantic. In other white-headed North Atlantic gulls, the mantle is generally a lighter grey and, in some species, it is a light powdery grey or even pinkish. [ 11 ]
The black-tailed gull is medium-sized (46 cm) (19 Inches), with a wingspan of 126–128 cm (49.6 - 50.3 Inches). It has yellow legs and a red and black spot at the end of the bill. Males and females have identical plumage and features, although males are larger in size than females. [2] This gull takes four years to reach full adult plumage. [3]
The lesser black-backed gull is smaller than the European herring gull. The taxonomy of the herring gull / lesser black-backed gull complex is very complicated; different authorities recognise between two and eight species. This group has a ring species distribution around the Northern Hemisphere. Differences between adjacent forms in this ring ...
Black-backed gull may refer to: Kelp gull ( Larus dominicanus ), of the southern hemisphere, also known as the southern black-backed gull Lesser black-backed gull ( Larus fuscus ), of the northern Atlantic
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 last is the eastern representative of the lesser black-backed gulls back in northwestern Europe, including Great Britain. However, the lesser black-backed gulls and herring gull are sufficiently different that they rarely interbreed; thus, the group of gulls forms a continuum except in Europe, where the two lineages meet.
The kelp gull (Larus dominicanus), also known as the Dominican gull, is a gull that breeds on coasts and islands through much of the Southern Hemisphere. The nominate L. d. dominicanus is the subspecies found around South America, parts of Australia (where it overlaps with the Pacific gull), and New Zealand (where it is known as the black-backed gull, the southern black-backed gull, mollyhawk ...
Black-legged kittiwake, Rissa tridactyla (A) Black-headed gull, Chroicocephalus ridibundus (A) Laughing gull, Leucophaeus atricilla (A) Ring-billed gull, Larus delawarensis (A) Herring gull, Larus argentatus; Lesser black-backed gull, Larus fuscus (A) Brown noddy, Anous stolidus; Sooty tern, Onychoprion fuscata; Bridled tern, Onychoprion anaethetus