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Adult common gulls are 40–46 cm (16–18 in) long and a wingspan of 100–115 cm (39–45 in), noticeably smaller than the herring gull and slightly smaller than the ring-billed gull. It is further distinguished from the ring-billed gull by its shorter, more tapered bill, which is a more greenish shade of yellow and is unmarked during the ...
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 wingspan is 120 to 155 cm (47 to 61 in). ... American Herring Gull photos This page was last edited on 12 February 2025, at 14:30 (UTC). Text is available under ...
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]
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A black-headed gull is able to differentiate an egg shell from an egg by acknowledging its thin, serrated, white, edge; the weight of the egg or eggshell does not play a role when determining its value. [17] Earlier hypotheses have attempted to explain the survival value of black-headed gulls removing their eggshells from the nest, including: [18]
Wingspan: 42.5–47.2 in (108–120 cm) ... Ivory Gull in California Ivory Gull information and Photos in California; Satellite tracking of Greenland Ivory Gulls;
They have black primaries with white tips. Immature birds are also similar in appearance to immature herring gulls, with browner plumage than immature ring-billed gulls. Length can range from 46 to 55 cm (18 to 22 in), the wingspan 122–137 cm (48–54 in) [citation needed] and body mass can vary from 430 to 1,045 g (0.948 to 2.304 lb). [4]