Purple Cochoa
Cochoa purpurea
An extremely shy and retiring bird, usually sluggish and difficult to see in well-shaded forests; coloration is unlike that of any typical thrush. At a distance, seems entirely dark with a soft purple crown and tail; up close, black face and wingtips are visible. Overall coloration is a powdery brownish-purple in males and chestnut-brown in females. Will occasionally move with mixed-species flocks, but usually sluggish, seldom leaving its perch. Song is a far-carrying, hauntingly human-like whistle. Inhabits damp hill and submontane forests, particularly in areas with ravines and stream gullies.
识别特征
This bird appears dark in the shade of the forest and the colours become clear only when it is lit by the sun. The crown is silvery blue and a black mask runs over the eye. A grey carpal patch is present at the base of the black wing feathers and a wing patch is prominent. The tail is silvery blue with a black terminal band. The male has dull purplish grey secondaries and coverts and the body is greyish while the female has rufous replacing the purple.<p>The genus name is from the Nepali word for the bird and was used by Brian Houghton Hodgson. The family position of the cochoas has been unclear with some sources suggesting that they belong to the Muscicapidae while others have suggested them to be in the family Turdidae. The latter suggestion has found more support in recent molecular studies.
分类信息
- 学名
- Cochoa purpurea
- 命名信息
- Hodgson, 1836
- 目
- Passeriformes
- 科
- Turdidae
- 属
- Cochoa
分布与栖息地
It is found in Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. In India, it is found along the Himalayas with the western limit about 100 km west of Musoorie.<p>Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests.[citation needed]
- 迁徙
- Resident species
行为
The species is not very active and is found mainly in the canopy. The breeding season is May to July, when it builds a cup shaped nest in a fork. The nest is covered with moss, lichens and a white thread-like fungus which is said to be distinctive. Three pale sea-green eggs with some blotchy markings are laid and both sexes take turns in incubation. The birds are shy at the nest and slip away even when disturbances are afar. The song consists of is a low whistle while other calls include a sit and soft trrrs. Charles Inglis reported that the birds have an iora-like whistling call in the mornings and evenings. These cochoas feed on berries, insects and molluscs. While picking fruits from trees they were observed behaving like flycatchers doing short sallies.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Plain-backed Antpitta
Grallaria haplonota
Medium-sized antpitta. Typical antpitta shape: plump and short-tailed with long legs, like a grapefruit on stilts. Plain brownish overall; darker olive above and tawny below with a white eyering. Uncommon in the foothills and lower subtropics from Venezuela to Peru. Occurs on the ground in wet montane forest from around 700–1,800 m. Exceptionally difficult to see. Listen for its song: a fairly slow series of hollow whistles that gets stronger in the middle and then trails off.
Garnet Pitta
Erythropitta granatina
This brilliant gem of a bird is, like most pittas, exceedingly shy and difficult to see as it forages on the forest floor. Listen for its song, a long, slightly broken whistle. If seen, its combination of bright red crown, deep purplish-blue back, and sparkling blue wing coverts are diagnostic. Favors wet lowland and lower foothill forests with a dense understory; can occasionally be found in low-quality secondary or modified habitats.
Oriental Reed Warbler
Acrocephalus orientalis
In breeding range, this large, long-billed songster of expansive reedbeds can often be seen perched on top of a stalk belting its heart out, but on wintering grounds, it is more likely to be detected by a harsh, grating rattling from deep within the vegetation. Unremarkably plumaged, brown above, paler below, with a weak white supercilium and a short bristly crest, occasionally raised. Compare with other large reed warblers, especially Clamorous Reed Warbler.
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