Double-barred Finch
Stizoptera bichenovii
Small white, gray, and black bird with a white rump and black tail. Adult has a thin black outline around pale face, lending a sort of "Barn Owl" look, as well as a second thin black breast band. Juvenile similar in pattern but dirtier gray. Inhabits open grassy habitats of far northern and eastern Australia, seen typically in pairs or small groups feeding on the ground.
识别特征
The double-barred finch is a 10–11 cm long munia-like bird. It has a white face bordered with black, brown upperparts and throat, and white underparts. The throat and underparts are separated by another black line. The wings are patterned in brown and white. The sexes are similar, but juveniles are duller and browner. The subspecies S. b. annulosa differs from the nominate in having a black rather than a white rump.
分类信息
The double-barred finch was formally described in 1827 by the naturalists Nicholas Vigors and Thomas Horsfield from specimens collected near Shoalwater Bay and Broad Sound in Queensland, Australia. They coined the binomial name Fringilla bichenovii. The species was formerly placed in the genus Taeniopygia. A molecular phylogenetic study of the Estrildidae published in 2020 found that the genus Taeniopygia was not monophyletic. In the reorganization to create monophyletic genera, the double-barred finch was moved to the resurrected genus Stizoptera that had been introduced in 1899 by the American ornithologist Harry C. Oberholser. The genus name combines the Ancient Greek stizō meaning "to tattoo" with pteron meaning "wing". The specific epithet commemorates James Ebenezer Bicheno, a colonial secretary of Van Diemen's Land appointed in September 1842.<p>Two subspecies are recognised:
- 学名
- Stizoptera bichenovii
- 命名信息
- (Vigors & Horsfield, 1827)
- 目
- Passeriformes
- 科
- Estrildidae
- 属
- Stizoptera
分布与栖息地
- 迁徙
- Resident species
行为
The double-barred finch is granivorous and highly gregarious. Nests are built in grass, bushes or low trees, with four to six eggs laid per clutch. The call is a soft tet or a louder peew, and the song is a soft fluting, which is somewhat like the zebra finch.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Fan-tailed Cuckoo
Cacomantis flabelliformis
A medium-sized cuckoo, with a warm buff colored chest and belly. Bright yellow eyering and heavily barred tail. Take care to identify from Brush Cuckoo (which has a gray eyering), and from Pallid Cuckoo (which is paler and lacks the warm breast tones). Often detected by sound since this species calls frequently with a descending trill. Perches in the midstory on exposed branches, and flushes easily to a nearby perch.
Long-billed Bush Warbler
Locustella major
Extremely rare, large, elongated brown warbler with a long slender bill. Fairly similar in appearance to West Himalayan, Chinese, Baikal, and Spotted Bush Warblers, but breeding ranges do not overlap. Like other bush warblers, typically very skulking and furtive, preferring to run instead of fly when threatened. Emerges onto small bushes to sing, producing a dull clicking that would underwhelm a grasshopper. Breeds in weedy and bushy slopes in open alpine and subalpine areas; wintering habitat poorly understood but presumed to be similar habitat at lower altitudes. Very few sightings in recent years.
African Swamphen
Porphyrio madagascariensis
When seen in good light, shows spectacular purple, green, and pale blue coloration. In dull light, looks dark, but still shows red bill and feet and white undertail. Found in freshwater and brackish wetlands with thick vegetation, mainly at low and middle elevations. Gives a loud trumpeting call. Coloration similar to Allen’s Gallinule, but chunkier and larger, with a much larger bill. Larger than Eurasian Moorhen, with brighter coloration, red legs, and no yellow tip to the bill.
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