Moseley's Rockhopper Penguin
Eudyptes moseleyi
A small black-and-white penguin with a wild, bushy yellow crest. Marine and variably pelagic, foraging offshore and nesting on boulder-strewn beaches and among stands of tussock grass. Very similar to Southern Rockhopper Penguin, but slightly larger, with a much larger and denser yellow crest. Extremely vocal, most often giving loud braying and barking sounds with accompanying head-swinging and flipper-beating.
分类信息
The rockhopper penguins have been considered to consist of two species, northern and southern rockhopper penguin, since research published in 2006 demonstrated morphological, vocal, and genetic differences between the two populations. Molecular datings suggest that the genetic divergence with the southern rockhopper penguin may have been caused by a vicariant event caused by a shift in the position of the Subtropical Front during the mid-Pleistocene climate transition.Analysis of a part of a mitochondrial control region from a northern rockhopper penguin found on the Kerguelen Islands showed that it may have come from Gough Island, 6,000 km away, and that the southern and northern rockhoppers are genetically separate, though some individuals may disperse from their breeding colonies. Many taxonomists have yet to recognize the split, although some are beginning to do so.
- 学名
- Eudyptes moseleyi
- 命名信息
- Mathews & Iredale, 1921
- 目
- Sphenisciformes
- 科
- Spheniscidae
- 属
- Eudyptes
分布与栖息地
More than 99% of northern rockhoppers breed during late spring or early summer on Tristan da Cunha and Gough Island in the south Atlantic Ocean. Breeding colonies are also found on the French Southern and Antarctic Lands of Amsterdam Island and St Paul Island.<p>It is very rare for the bird to make landfall on the Australian continent, but in 2006, a northern rockhopper was sighted at Robe, South Australia, and in July 2023 a very underweight northern rockhopper was found at Goolwa beach in South Australia.
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Straneck's Tyrannulet
Serpophaga griseicapilla
Small flycatcher with a gray head, an olive-brown back, a whitish throat, and a yellow belly. Note the white eyebrow and broken eye-ring. Occurs in woodland and scrub; migrates to the northeast during the austral winter. The song is a single note followed by a trill: “twie tirrrrrrrrrrrrrrrrrr.” The similar White-crested Tyrannulet has a different song and is also slightly larger, with a white crown patch that is often concealed.
Glossy-black Thrush
Turdus serranus
Fairly large thrush found in the Andean subtropical zone from around 1,500–2,800 m. Fairly common. Well-named: male is entirely glossy black with orange bill, legs, and eyering. Female is warm medium brown with dull yellowish bill, legs, and eyering. Usually found in cloud forest or at edges and clearings. Tends to stay hidden, but males sometimes perch up to sing at dawn and dusk. Not likely to be seen brazenly hopping around in the open like Great Thrush. Listen for distinctive song: a fast jumble of notes that rises at the end, repeated endlessly.
Malabar Lark
Galerida malabarica
A rusty-brown bird with very heavily streaked upperparts. It has a short crest, paler underparts, and strong streaks that run down the breast. Similar to Crested Lark, but the Malabar Lark is smaller, has a shorter and straighter bill, and is generally darker. Similar to Tawny Lark as well, but slightly larger, with a slimmer bill, and more heavily marked. Inhabits grassy areas, rocky areas, and fields. Forages lazily, and often flocks outside the breeding season. Calls and songs consist of pleasant series of variable short whistles.
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