Eye-ringed Thistletail
Asthenes palpebralis
Well-named bird found only in a small area of the eastern Andes in central Peru. Like other thistletails, it is gray and brown with a long, wispy tail and an orange chin. Not known to overlap with any other thistletail; the only other in Peru with an eye-ring is Mouse-colored Thistletail, which only occurs far to the north. Inhabits scrub and stunted forest near treeline. Gives rapid, high-pitched trills and sharp squeaks.
识别特征
The eye-ringed thistletail is 18 to 20 cm (7.1 to 7.9 in) long and weighs 16 to 18 g (0.56 to 0.63 oz). The sexes have the same plumage. Adults have a wide white eyering and dark brown lores on an otherwise chestnut-brown face. Their crown, back, rump, and wings are a darker chestnut-brown. Their tail is a more rufescent brown than the back; it is long and deeply forked with few barbs at the feather ends that give a ragged appearance. Their chin has a rusty or orange-rufous patch. Their throat and the rest of their underparts are gray with a paler belly and brownish-tinged flanks. Their iris is light gray to chestnut, their maxilla black, their mandible black or gray, and their legs and feet gray to blue-gray. Juveniles do not have the rusty chin; their belly is paler than adults' and their flanks brower.
分类信息
The eye-ringed thistletail was long treated as a subspecies of the white-chinned thistletail (then Schizoeaca fuliginosa, now Asthenes fuliginosa) but was eventually separated as a species. They and several other species were in genus Schizoeaca but genetic data showed that the genus is embedded within Asthenes. The eye-ringed thistletail is monotypic.
- 学名
- Asthenes palpebralis
- 命名信息
- (Cabanis, 1873)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Asthenes
分布与栖息地
The eye-ringed thistletail is found only in the Andes of Peru's Department of Junín. It inhabits the narrow ecotone of the upper edges of cloudforest and the elfin forest above it. Often the understory is dense with Chusquea bamboo. In elevation it is found between 3,030 and 3,710 m (9,900 and 12,200 ft).
- 迁徙
- Resident species
行为
The eye-ringed thistletail is believed to be a year-round resident throughout its range.<p>The eye-ringed thistletail's diet and foraging behavior are not known in detail. It is assumed to feed mostly on arthropods gleaned in the understory from foliage, branches, and moss. It is usually seen singly or in pairs.<p>Nothing is known about the eye-ringed thistletail's breeding biology.<p>The eye-ringed thistletail is quite vocal, with both members of a pair singing. Its song is "a long, slightly undulating or accelerating dry chatter or trill, which rises until near the end when it falls sharply". Its call is "a sharp, rising peee or weee".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Large, terrestrial songbird with long, strong legs and fairly long, thin bill. Male black above, white below, with white wing patch, white face patch, white eye, black bib, black eyeline; female has white throat and immature a dark eye. Inhabits parks, gardens, and urban areas. Aggressive and noisy, often attacking its own reflection in car mirrors and windows. Much smaller than Australian Magpie, with a smaller pale bill.
Sri Lanka Whistling-Thrush
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Short-tailed, thrushlike flycatcher. Male mostly dark blue, with bright blue shoulder, and dark bill. Female all rufous, with blue shoulder patch. Very secretive bird of the shady understory and ground, inside gullies within montane forest. Dark male resembles larger Indian Blackbird, although Whistling-Thrush is dark-billed, with a shorter tail. Female similar to other nondescript, brown songbirds, but uniform rufous coloration and blue shoulder patch identifies it from all others. Voice includes a high-pitched “sreee” and “si” notes, as well as a complex, rapid twittering song comprised of varied pitch, whistled notes.
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