Arfak Robin
Heteromyias albispecularis
A medium-sized bird of moist montane forest in the west of New Guinea. Pale gray below, pale pink legs, an indistinct white mark in the wing and an obvious white mark below the eye. Song a series of identical piping notes, delivered at variable pace.
识别特征
Measuring 15 to 18 cm (5.9 to 7.1 in), the ashy robin is a large and solidly built robin. It has a sooty black head and cheeks, with a white stripe extending backwards and upwards from the eyes. It has a white throat darkening to buff underparts and olive-brown upperparts. There is a white patch on the otherwise dark-plumaged wing. The bill is grey-black, the eyes are dark brown, and the legs pale pink.
分类信息
It is one of three species within the genus Heteromyias. Previously, it and the grey-headed robin from Australia were treated as one species and known as Heteromyias albispecularis. The black-capped robin (H. armiti) was formerly considered a subspecies of H. albispecularis, but more recent studies indicate it is a distinct species, and it has been split from it (the subspecies H. a. rothschildi has also been carried over to armiti). It has also been classified within the genus Poecilodryas. <p>Described by Italian naturalist, Tommaso Salvadori, in 1874, the ashy robin is a member of the Australasian robin family Petroicidae. Sibley and Ahlquist's DNA-DNA hybridisation studies placed this group in a Corvida parvorder comprising many tropical and Australian passerines, including pardalotes, fairy-wrens, honeyeaters, and crows. However, subsequent molecular research (and current consensus) places the robins as a very early offshoot of the Passerida (or "advanced" songbirds), within the songbird lineage.
- 学名
- Heteromyias albispecularis
- 命名信息
- (Salvadori, 1876)
- 目
- Passeriformes
- 科
- Petroicidae
- 属
- Heteromyias
分布与栖息地
The ashy robin is found across the mountain ranges of New Guinea (in both West Papua and Papua New Guinea) from 1,400 to 2,600 m (4,600 to 8,500 ft). Within the rainforest it is found singly or occasionally in pairs in the understory or on the ground.
- 迁徙
- Resident species
行为
It is insectivorous, and hunts by gleaning or snatching, often on the ground. Among its prey are ants, beetles, phasmids, centipedes, and earthworms.<p>The nest is a shallow cup made of bark, grass, twigs, and dry leaves. Spider webs are used for binding or filling. The nest is generally placed in cover 1–3 m (3.3–9.8 ft) above the ground. The clutch consists of a single cream- or olive-white egg, marked with light brown or mauve splotches and spots, usually concentrated around the large end. The egg measures 24 by 20 mm in size.
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
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Rhodospiza obsoleta
This subtly handsome finch is unique in its range; warm sandy brown with bright pink and silver flashes in the wings. Sexes are similar, but the male boasts a restricted black mask extending from the front of the eye to the base of the stout charcoal-black bill, which the female lacks. Not restricted to deserts but generally does prefer dry, open areas in middle to high altitude regions. Frequents villages, towns, and even cities. Gives a tumbling series of random-sounding notes, usually with a rather hoarse, buzzy quality. Calls include “chip” and “chink” notes and buzzy wheezes.
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Small, oblong-shaped seabird. Breeding plumage mottled brown; darkness varies, but often shows golden tint. Nonbreeding plumage dark gray above and white below, with a white face and large white wing patch. Nests in crevices in rocky scree slopes, particularly around glaciers; forages in coastal glacial outflows. Similar to Marbled and Long-billed Murrelets, but with shorter bill and white outer tail feathers; breeding birds average paler with speckled back, while nonbreeders show white on face extending above the eye.
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