White-faced Storm-Petrel
Pelagodroma marina
Striking white-bodied storm-petrel with distinctive flight style: glides on stiff wings and bounces across the sea surface with both feet, much like a hopping kangaroo. Plumage also unique; look for mostly white face with dark mask. Also note extremely long legs projecting far beyond tail and rather long, slender bill. Fairly common and widespread in subtropical and tropical waters across the globe, with several disjunct and subtly variable populations. Can be seen singly or in groups when feeding; rarely mixes with other species of storm-petrel.
识别特征
The white-faced storm petrel is 19 to 21 centimetres (7.5 to 8.3 in) in length with a 41 to 44 centimetres (16 to 17 in) wingspan. It has a pale brown to grey back, rump and wings with black flight feathers. It is white below, unlike other north Atlantic petrels, and has a white face with a black eye mask like a phalarope. Its plumage makes it one of the easier petrels to identify at sea.
分类信息
- 学名
- Pelagodroma marina
- 命名信息
- (Latham, 1790)
- 目
- Procellariiformes
- 科
- Oceanitidae
- 属
- Pelagodroma
分布与栖息地
- 繁殖区
- AO, IO, PO : Salvage (nw of Canary Is.), Canary and Cape Verde is. (Macaronesia, off nw Africa), Tristan da Cunha group including Gough (sc Atlantic Ocean), s Australian islets and New Zealand region
- 非繁殖区
- to subtropical waters in North and South Atlantic, nw and tropical Indian to Seychelles, and se Pacific oceans
- 迁徙
- Complete migrants
行为
The white-faced storm petrel is strictly pelagic outside the breeding season, and this, together with its often-remote breeding sites, makes this petrel a difficult bird to see from land. Only in severe storms might this species be pushed into headlands. There have been a handful of western Europe records from France, the United Kingdom and the Netherlands. It has a direct gliding flight and will patter on the water surface as it picks planktonic food items from the ocean surface. It is highly gregarious, but does not follow ships. Like most petrels, its walking ability is limited to a short shuffle to the burrow.<p>The white-faced storm petrel breeds on remote islands in the south Atlantic, such as Tristan da Cunha and also Australia and New Zealand. There are north Atlantic colonies on the Cape Verde Islands, Canary Islands and Savage Islands. It nests in colonies close to the sea in rock crevices and lays a single white egg. It spends the rest of the year at sea. It is strictly nocturnal at the breeding sites to avoid predation by gulls and skuas, and will even avoid coming to land on clear moonlit nights.
保护状况
Widespread throughout its large range, the white-faced storm petrel is evaluated as Least Concern on the IUCN Red List of Threatened Species.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Village Indigobird
Vidua chalybeata
Nest parasite that lays its eggs in the nests of Red-billed and Brown firefinches. Breeding males are glossy black, while females and non-breeding males are streaky and brown on the back and pale below, with a bold facial pattern. The color of the bill is red in southeast Africa and whitish in western, northern, and central Africa. Found in savanna, scrub, farmland, and towns. Mimics the vocalizations of its host firefinches: low rattling series and high-pitched whistled notes. In southeast Africa, can be separated from other indigobirds by its red bill. Very similar to other indigobirds elsewhere on the continent. Breeding males can be separated by their all-black wings that lack a pale brownish panel. The mimicked vocalizations of its host species can also help confirm identification. In non-breeding plumage, similar to non-breeding Pin-tailed Whydah but separated by red legs.
Scaly-throated Leaftosser
Sclerurus guatemalensis
Retiring inhabitant of humid tropical lowlands. Found singly, hopping on the ground in shady rainforest and tossing leaves with its bill, in search of insects and other morsels. Most often detected when disturbed or flushed, when it gives a sharp, whistled “skweek” call. Note the long and rather slender straight bill. Plumage is dark brown overall with paler mottling (not really scaling) on the throat and breast.
Vanikoro Flycatcher
Myiagra vanikorensis
A small flycatcher. Male is deep glossy blue-black on the back, hood, and tail. Chest and belly are ochre red. Female resembles male but is paler and lacks the dark throat. Found in most habitats up to 1100 meters of elevation, preferring forest edge and open woodland. Song is an excited “chwee chwee.” Call is a short harsh scolding chatter.
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