White-eared Sibia
Heterophasia auricularis
Elegant, long-tailed endemic songbird with a unique tufted white cheek. Gray overall, with darker wings and pale orange belly. White in wing and tail tips most apparent in flight. Typically inhabits montane forests but descends into foothills and lowlands at times. Often seen congregating in large numbers at flowering or fruiting trees; usually in smaller flocks otherwise. Song comprised of a series of quick whistled bursts followed by a longer, more drawn-out note.
识别特征
The white-eared sibia is an elegant, long-tailed babbler, 22 to 24 cm (8.7–9.4 in) long and weighing an average of 40–50 g (1.4–1.8 oz). The head is black with a conspicuous white stripe through the eye, and the stripe ends in long white filamentous plumes. The wings and tail are deep blue-black, with a noticeable white wingbar. The upper back and breast is dark grey, and the belly and rump are deep rufous chestnut. The bill is black and the legs brown-flesh coloured. Both the sexes are alike, and the plumage of juvenile birds hasn't been described.
分类信息
- 学名
- Heterophasia auricularis
- 命名信息
- (Swinhoe, 1864)
- 目
- Passeriformes
- 科
- Leiothrichidae
- 属
- Heterophasia
分布与栖息地
It is endemic to the island of Taiwan, where it occupies a range of forest and woodland habitats. The species is a partial altitudinal migrant, breeding at 1,200–3,000 m (3,900–9,800 ft) above sea-level during the summer (or 2,780 m (9,120 ft) in the north of Taiwan), but with some individuals descending down to 700 m (2,300 ft) in winter, sometimes as low as 200 m (660 ft) in a particularly harsh spell. In the summer it inhabits evergreen forests, including mixed broadleaf coniferous forests, but will use deciduous forests in the winter.
- 迁徙
- Resident species
行为
The white-eared sibia is an active feeder, taking a wide range of prey and food items. It feeds on insects taken from flowers, and will also take nectar, acorns, berries, fruit and seeds. The white-eared sibia has a brushy tongue adapted to taking nectar, but is not wholly dependent on that food source. It will join flocks of Taiwan yuhina in flowering trees to take advantage of it when the chance arises. It will also take eggs and nestlings, such as those of the Taiwan yuhina. It feeds from the canopy of trees to the forest floor, but more commonly feeds higher up, either individually, in pairs or in small flocks. Very little is known about its breeding behaviour; while the species is not shy, all that is known is that it nests in the canopy of tall trees.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Makira White-eye
Zosterops rendovae
Small social songbird, often encountered foraging in upper levels of forest. Mostly olive-green above with a yellow undertail. Belly, chest, and throat gray. Note the smudgy black patch in front of the eye. Found in forest and forest edge from 500 to 2000 meters of elevation, but down to 50 meters of elevation on Makira. Similar to Yellow-throated White-eye, but upperparts less yellow and throat gray. Common calls include a loud mellow “peeeu” and high-pitched “peep-peep” foraging calls.
Dybowski's Twinspot
Euschistospiza dybowskii
An unusual dark twinspot with a gray hood, a red back and rump, and large white “twin spots” on the belly. Found in areas of tall grass, both in lush savanna and along forest edge. Usually in pairs or small groups. Most similar to Brown Twinspot, but separated by many details, including the red back and the twin spots restricted to the belly. The calls are simple, often repeated “seet” and “veet” notes. The song is a variable mix of the call notes, plus high-pitched bubbling and squealing notes.
Black-throated Antbird
Myrmophylax atrothorax
Medium-sized antbird of dense understory and riverside vegetation. Males are deep chestnut-brown, with black throat and white wing spots; females are lighter red-brown above, light tan below, with white wing spots as in male. Typically found in dense vegetation along rivers, particularly common in dense cane stands; sometimes also found away from water around forest edges and in tree fall gaps. Listen for an ascending series of high, whiny notes, decelerating then accelerating.
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