Striated Grasswren
Amytornis striatus
Small, long-tailed bird with black moustache and rufous-brown upperparts, found only in the Murray-Mallee region of South Australia and Victoria, where it is the only expected grasswren. Found in mallee woodland and dunes with large spinifex clumps, where it scurries around on the ground and low branches. Upperparts rusty-brown, with a white throat and buff-colored underparts.
识别特征
The striated grasswren is one of 13 species in the genus Amytornis, commonly known as the grasswrens, found only in arid and semi-arid areas of Australia. All are small cryptic birds with long, usually cocked-tails, characterised by diagnostic distinctive interscapular gap in the feathering, an enlarged auditory bulla (tympanic chambers) and ten rectrices. The striated grasswren is a slim, long-tailed grasswren with a slender pointed bill. The plumage is highly variable across its range, suited to local soil and rock colour; birds are slightly sexually dimorphic; females have a brighter rufous flank-patch. All populations are soft red-brown above, streaked white; an orange-buff eyebrow and fore-supercilium; white throat; bold black submostachial stripe; and buffish underbody.Like other grasswrens they have short rounded wings and are unable to undertake long flights, typically flitting or hopping from perch to perch within vegetation, and run or hop when on the ground in a series of fast jerky movements. While closely related to the familiar fairy-wrens (Malurinae) striated grasswrens are larger (17-20g c.f. 6-16g), and more sombrely coloured, with varyingly prominent white streaking on varying shades of brown, rufous and black plumage.Striated grasswrens are usually seen as pairs, but sometimes as individuals, and often in small groups of up to five birds, which are unobtrusive, shy, and typically difficult to approach, often first detected by their calls. When breeding, birds may be inquisitive of intruders of their territory.
分类信息
The striated grasswren (Amytornis striatus) is a Passeriform in the Maluridae Family, which is shared with the familiar Australian and New Guinean fairy-wrens. It is one of 13 species of grasswren currently recognised in the subfamily Amytornithae, all within the Genus Amytornis, and confined to mainland Australia. The species was first described by John Gould in 1840 from a specimen collected on the Liverpool Plains of NSW.The scientific name of this species translates the genus Amytornis from Greek ‘Amytis bird’ Amytis being an ancient Persian female name with no direct link to the species, while ornis translates to ‘bird’ directly from Greek. The specific name refers to the heavily streaked upperparts, from Modern Latin striatus striped, streaked, which is in turn from Latin stria, a line.
- 学名
- Amytornis striatus
- 命名信息
- (Gould, 1840)
- 目
- Passeriformes
- 科
- Maluridae
- 属
- Amytornis
分布与栖息地
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Brown-backed Mockingbird
Mimus dorsalis
Handsome mockingbird found in scrubby areas in the high Andes. It has rich brown upperparts, mostly white underparts, and a white eyebrow. The brilliant white wing stripes and outer tail feathers flash conspicuously in flight, and help to separate it from the relatively plain Patagonian Mockingbird. Similar to White-banded Mockingbird, but tends to be browner (less gray) on the back and crown, has smaller white wing stripes, and is normally found at much higher elevations. It has a huge vocal repertoire ranging from shrill whistles to harsh churrs and metallic trills.
Malabar Starling
Sturnia blythii
Brightly-colored starling with a smooth “silky” appearance. Male has a sharply contrasting white head and orange underparts. Female is plainer, with less contrast, and white restricted to the forehead. Very similar Chestnut-tailed Starling is not sexually dimorphic; also note grayer head and shorter bill. Found in open areas with scattered trees, often in proximity to human habitation. Forages on trees and on the ground, usually in pairs or small flocks.
Nepal House-Martin
Delichon nipalense
A typical house-martin, with dark upperparts, white underparts, a white rump, and a rather dumpy body. Differs from Common and Asian House-Martins by its sooty throat. Upperparts can have a bluish gloss if seen in good light. Breeds on ridges and cliffs, and occasionally around human settlements. Associates with other swallows and swifts, often gathering over water to catch emerging insects.
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