Armenian Gull
Larus armenicus
Among large gulls it is rather small and delicate with a short bill and a “sweet” round-headed profile. Adults have a prominent black band across the bill. Wingtips are extensively black with little white. Young birds are brown and streaked. Has a rather limited range. Breeds on upland lakes. In winter found along coasts and inland wetlands.
识别特征
The Armenian gull is a fairly large gull species, though it is on average the smallest of the "herring gull" complex. It can range from 52 to 62 cm (20 to 24 in), from 120 to 145 cm (47 to 57 in) across the wings, and weighs from 600 to 960 g (1.32 to 2.12 lb). Among standard measurements, its wing chord is 38.5 to 45.8 cm (15.2 to 18.0 in), its bill is 4.1 to 5.6 cm (1.6 to 2.2 in) and its tarsus is 5.7 to 6.4 cm (2.2 to 2.5 in). They are superficially similar to yellow-legged gulls but are slightly smaller with a slightly darker grey back and dark eyes. The area of black on the wingtips is more extensive with smaller white spots. The bill is short with a distinctive black band just before the tip. First-winter birds are mainly brown. They have a whitish rump, pale inner primary feathers, and a narrow, sharply-defined black band on the tail. Although their ranges do not overlap, with its darkish mantle, both black and red near the tip of its bill and a dark eye, the Armenian gull bears a remarkable resemblance to the California gull (L. californicus) of North America.
分类信息
- 学名
- Larus armenicus
- 命名信息
- Buturlin, 1934
- 目
- Charadriiformes
- 科
- Laridae
- 属
- Larus
分布与栖息地
The Armenian gull nests beside mountain lakes in Georgia, Armenia, Turkey, and western Iran. The largest colonies are at Lake Sevan and Lake Arpi in Armenia. It is a partial migrant, with many birds wintering on the coasts of Turkey, Lebanon, and Israel. Smaller numbers reach Cyprus, Egypt, and the Persian Gulf.
- 繁殖区
- PAL : lakes of s Georgia, Armenia, e Turkey and nw Iran
- 非繁殖区
- to e Mediterranean, s Black and s Caspian seas, and Persian Gulf
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
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A huge swift of lowlands and mountains, one of the fastest-flying birds in the world. Mainly black with a purplish-blue gloss, an obvious white triangle under the base of the tail, and two pale marks at angles to each other in the center of each wing. Square tail has spines that are difficult to see; tail is sometimes held closed into a point. Distinguished from other swifts in its range by much larger size and by the white under the base of the tail. Voice unknown.
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Heavyset, gray-brownish seabird of the open Pacific Ocean, with pale patches in the underwings at the primary feathers and indistinct pale feathering around the bill base. Upperparts sometimes show grayish, almost silvery grizzled appearance. High-arcing flight in high winds, as in other gadfly petrel species. Similar to dark-morph Kermadec Petrel, which shows white shafts in primary feathers in the upperwings, lacking in Providence.
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Xanthopsar flavus
Brightly colored blackbird. Males have a black nape and upper back; face, underparts, and rump are yellow tinged with orange. Note the black mask and the yellow shoulder patch. In females the black is replaced by brown. Closely linked to water; found in marshes and natural grasslands, where it mostly forages in flocks on the ground. Declining rapidly.
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