Sooty Gull
Ichthyaetus hemprichii
Medium-sized elongated gull. Brown-gray overall with a long bill and dark underwings. Similar to White-eyed Gull, but with dark underwings. Slightly larger and heavier with browner adult plumage than White-eyed Gull. The bill on Sooty Gull is also thicker and clearly two-toned in all ages compared to White-eyed Gull. Coastal, breeds on islands and coral reefs.
识别特征
The sooty gull (Ichthyaetus hemprichii) is a species of gull in the family Laridae, also known as the Aden gull or Hemprich's gull. It is found in Bahrain, Djibouti, Egypt, Eritrea, India, Iran, Israel, Jordan, Kenya, Lebanon, Maldives, Mozambique, Oman, Pakistan, Palestine, Qatar, Saudi Arabia, Somalia, Sri Lanka, Sudan, Tanzania, United Arab Emirates, and Yemen. As is the case with many gulls, it has traditionally been placed in the genus Larus. The sooty gull is named in honour of the German naturalist Wilhelm Hemprich who died in 1825 while on a scientific expedition to Egypt and the Middle East with his friend Christian Gottfried Ehrenberg.
分类信息
Genus: Ichthyaetus; Family: Laridae; Order: Charadriiformes.
- 学名
- Ichthyaetus hemprichii
- 命名信息
- (Bruch, 1855)
- 目
- Charadriiformes
- 科
- Laridae
- 属
- Ichthyaetus
分布与栖息地
The sooty gull is native to the Red Sea, the Gulf of Aden, the Gulf of Oman, the Persian Gulf and its range extends as far east as Pakistan. It is also native to the east coast of Africa as far south as Tanzania and Mozambique. It occurs as a vagrant in India, Sri Lanka, the Maldives, Jordan, Lebanon, Israel and Bahrain. It is a coastal bird, seldom going further out to sea than about 10 km (6 mi) beyond coastal reefs although it has occasionally been seen 140 km (87 mi) from land. It frequents ports and harbours, the coast, inshore islands and the intertidal zone. It seldom moves inland or visits freshwater locations. It is nomadic or partially migratory and many populations move southwards after breeding, though Red Sea populations seem to be relatively sedentary.
- 繁殖区
- AF, PAL : islands of Red Sea, Gulf of Aden, Socotra, nw Indian Ocean to ne Kenya, Persian Gulf and nw Arabian Sea to s Pakistan
- 非繁殖区
- to Gulf of Aqaba (se Israel) and c Tanzania and Zanzibar
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
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