Mascarene Petrel
Pseudobulweria aterrima
An entirely dark petrel that usually has a cross-like shape in flight. Note the large, square head, the thick bill, and the long rear. Critically endangered; nests on cliffs and crevices on the island of Reunion and feeds in the surrounding ocean. The vocalization is an eerie scream, given at night around breeding sites. Separation from several similar species is tricky. Most similar to Great-winged Petrel, and distinguished only by subtle differences, including the heavier head and bill, longer neck and tail, more rounded wing, and less explosive flight. Also similar to Jouanin’s Petrel, but identified by larger size, longer wings that are held straighter, and shorter rear. Separated from Wedge-tailed Shearwater by the much heavier bill, and from dark-morph Trindade Petrel by the lack of a silver flash in the underwing.
分类信息
- 学名
- Pseudobulweria aterrima
- 命名信息
- (Bonaparte, 1857)
- 目
- Procellariiformes
- 科
- Procellariidae
- 属
- Pseudobulweria
分布与栖息地
- 繁殖区
- IO : montane Réunion (w Mascarenes; formerly also Rodrigues)
- 非繁殖区
- to Seychelles, Arabian Sea, Bay of Bengal and Timor Sea (n of w Australia)
- 迁徙
- unknown
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
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Sitta oenochlamys
A small bird of lowland and montane forest and edge. Unmistakable; the only nuthatch in its range. Blue above with a black edge to the wing, a black forehead, a thin black stripe behind the eye, pale pink underparts, and a yellow bill, eye, and eye-ring. Often joins mixed-species flocks. The only woodpecker similar in size is Philippine Woodpecker, but Sulphur-billed Nuthatch is blue rather than brown. Voice includes high-pitched, descending shrieking calls and sharp staccato chips.
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