Square-tailed Drongo
Dicrurus ludwigii
Small drongo with a slightly notched tail. Found in open forest, thick woodland, and thickets. Not as bold or conspicuous as the common Fork-tailed Drongo. Often in pairs. Song is an explosive and highly variable mix of whistles, squeals, and rasps. Similar to Velvet-mantled and Fork-tailed drongos, but with a much less forked tail. Very similar to Shining Drongo, but Square-tailed has less glossy plumage, a redder eye, and prefers drier habitats. Distinguished from black-flycatchers by heavier bill and red eye. Upright posture is unlike other all-black mid-sized birds.
分类信息
The square-tailed drongo was described by the Scottish zoologist Andrew Smith in 1834 from birds observed around Port Natal (now Durban) in South Africa. He coined the binomial name Edolius ludwigii. The specific epithet was chosen to honour the German botanist Baron von Ludwig who collected plants in South Africa between 1805 and 1847. It is now placed with the other drongos in the genus Dicrurus that was introduced by the French ornithologist Louis Pierre Vieillot in 1816. Based on the results of a molecular phylogenetic study published in 2018, the taxonomy of the square-tailed drongo complex was reorganised. Sharpe's drongo which had previously been treated as a subspecies of Dicrurus ludwigii was promoted to species rank becoming Dicrurus sharpei. But those birds previously in Dicrurus ludwigii sharpei occurring between Senegal and the Niger River were considered as a separate species, the western square-tailed drongo (Dicrurus occidentalis).<p>Four subspecies are recognised:
- 学名
- Dicrurus ludwigii
- 命名信息
- (Smith, A, 1834)
- 目
- Passeriformes
- 科
- Dicruridae
- 属
- Dicrurus
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
鸟叫声
其他鸟类
Spot-throat
Modulatrix stictigula
Supreme understory skulker in montane forest, resembling a hybrid between a thrush and babbler. A dull but distinctive-looking bird if seen well, with brown-olive upperparts and rusty underparts, a bold dull blue-gray eye-ring and black-speckled tawny throat. The bill is dark on top and pale underneath. Immature is paler, lacking the spotted throat. Singles or pairs are highly localized residents flicking through leaf litter or following ants in undergrowth of Eastern Arc montane forest, between 900–2700m; shy and hops or runs quickly across the forest-floor, seldom permitting absorbing looks. Thrush-like song is a varied but distinctive shrill series of whistles and slurs. Calls include a single upslurred sweet “seeuuuiit”, and a scratchy “werrrt” in alarm.
White-tailed Ant-Thrush
Neocossyphus poensis
Dark, plain, long-tailed thrush. The tail is blackish with big white corners, and the wings show rufous patches in flight. Found on or near the ground in humid forest. Generally shy and retiring. Often follows ant swarms. The common vocalizations are a long, high whistle and a short “brttt” trill. Similar to Red-tailed Ant-Thrush, but has a black-and-white rather than reddish tail. Also similar to Finsch’s Flycatcher-Thrush, but has a more horizontal posture, and spends its time near the ground rather than in the mid-story.
Eastern Parotia
Parotia helenae
A fairly large, short-tailed bird of mid-montane forest canopy. Male is mainly black with a bronzy-scaled chest and 6 antennalike feathers projecting from the back of the head. Note the blue eyes. The female is warm-brown above with barred underparts and a black head. The male has an elaborate dance at a terrestrial display court. Females are similar to female lophorinas, but are larger and lack a pale eyebrow stripe. The vocalizations are poorly known, but likely include various rasps and parrotlike squawks.
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