Asian Desert Warbler
Curruca nana
Sandy-brown warbler with glaring yellow eyes. Small and unobtrusive, usually skulking about in short trees and shrubbery. Inhabits a range of open habitats, including steppes, open woods, parks, and agricultural areas with scattered foliage. Whitethroats are somewhat similar in habitat and size, but are gray with heavier contrast between the underparts and upperparts.
识别特征
The Asian desert warbler (Curruca nana) is an Old World warbler which breeds in the deserts of central and western Asia and the extreme east of Europe (Volga Delta area east to western Inner Mongolia in China), and migrating to similar habitats in southwestern Asia (Arabia to northwestern India) and the far northeast of Africa (Red Sea coastal regions) in winter. Until recently it was considered conspecific with the African desert warbler (and called just "desert warbler"), but is now given specific status. The two are still each other's closest living relatives, and their relationships to other typical warblers are not clear. They may be fairly close to the common whitethroat; particularly, female whitethroats look much like a richly coloured Asian desert warbler. But it seems that all these three taxa are fairly basal members of the genus. It is a small bird (the second-smallest in the genus after African desert warbler), 11.5–12.5 cm long. The sexes are almost identical in colour, pale grey-brown above with browner wings and tail, and whitish below; the bill and legs are yellowish, and the eye has a yellow iris. Like its relatives, it is insectivorous, but will also take small berries; unlike most warblers, it commonly feeds on the ground. The song is a distinctive jingle often given in an advertisement flight, with a mix of clear and harsher notes. It breeds in semi-desert and dry steppe environments, as long as some bushes for nesting occur. The nest is built in low shrub, and 4–6 eggs are laid. It has occurred as a rare vagrant as far west as Great Britain. The specific nana is Latin for "dwarf", from earlier Ancient Greek nanos.
分类信息
Genus: Curruca; Family: Sylviidae; Order: Passeriformes.
- 学名
- Curruca nana
- 命名信息
- Hemprich & Ehrenberg, 1833
- 目
- Passeriformes
- 科
- Sylviidae
- 属
- Curruca
分布与栖息地
Breeding range: PAL : n Iran to Mongolia and nw China. Non-breeding range: to ne Africa annd Asia Minor.
- 繁殖区
- PAL : n Iran to Mongolia and nw China
- 非繁殖区
- to ne Africa annd Asia Minor
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Flightless Steamer-Duck
Tachyeres pteneres
A large heavily built duck that is uncommon to fairly common along rocky seacoasts; not found on lakes, unlike Flying Steamer-Duck. Both sexes are steely blue-gray overall, brighter than Flying Steamer-Duck, with a stouter and deeper-based bill. The bill of both male and female is bright orange in the southern parts of its range, but is orange with a greenish distal patch around Chiloé Island (likely a different species). The bill of juvenile birds is duller grayish to dull yellowish; attains adult color by winter.
Fan-tailed Grassbird
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Oddly shaped warbler with a long, broad tail and a flat-topped head. Watch under the tail for a series of buffy crescents at the tip of each progressively shorter tail feather. Found in thick, wet grassland. Usually very skulky, except when perched out after a rain, or in display flight. Song is a slowly repeated whistle. Dull coloration could make for confusion with other warblers, but the shape is distinctive.
Lyre-tailed Honeyguide
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A large canopy honeyguide that is far more often heard than seen, although it does sometimes descend lower, almost to ground level. When seen, its greenish upperparts contrast with its pale olive underparts to give it a two-toned appearance. Belly is pale with flank streaking, and the distinctive tail has white edges and feathers that curve outward, giving it a lyre shape that is most noticeable in the males. Males perform aerial displays high overhead in which they quickly open their wings and tails to create a two-parted sound like a bow on a string that gradually grows louder, “huhwa, huh-wa, HUH-WA.” Despite its distinctive displays, the bird can be frustratingly difficult to locate and see.
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