亚州白绶带 ASIAN PARADISE-FLYCATCHER Terpsiphone paradisi
The Asian Paradise Flycatcher (Terpsiphone paradisi) is a medium-sized passerine bird native to Asia. Males have elongated central tail feathers, and in some populations a black and rufous plumage while others have white plumage. Females are short-tailed with rufous wings and a black head. They feed on insects, which they capture in the air often below a densely canopied tree.
Young males look very much like females but have a black throat and blue-ringed eyes. As adults they develop up to 24 cm (9.4 in) long tail feathers with two central tail feathers growing up to 30 cm (12 in) long drooping streamers.
Young males are rufous and have short tails. They acquire long tails in their second or third year. Adult males are either predominantly bright rufous above or predominantly white. Some specimens show some degree of intermediacy between rufous and white. Long-tailed rufous birds are generally devoid of shaft streaks on the wing and tail feathers, while in white birds the shaft streaks, and sometimes the edges of the wing and tail feathers are black.
Ecology and behaviour
Asian Paradise Flycatchers are noisy birds uttering sharp skreek calls. They have short legs and sit very upright whilst perched prominently, like a shrike. They are insectivorous and hunt in flight in the understorey. In the afternoons they dive from perches to bathe in small pools of water. The breeding season lasts from May to July. Being socially monogamous both male and female take part in nest-building, incubation, brooding and feeding of the young. The incubation period lasts 14 to 16 days and the nestling period 9 to 12 days. Three or four eggs are laid in a neat cup nest made with twigs and spider webs on the end of a low branch. The nest is sometimes built in the vicinity of a breeding pair of drongos, which keep predators away. Chicks hatch in about 21 to 23 days.