Silver-backed Needletail vs Alpine Swift
Hirundapus cochinchinensis 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Silver-backed Needletail | Alpine Swift |
|---|---|---|
| 学名 | Hirundapus cochinchinensis | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.6 cm (14.4 in) | 43.9 cm (17.3 in) |
| 体重 | 85.97999999999999 g (3.03 oz) | 97.5 g (3.44 oz) |
| 食性 | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | -- | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Silver-backed Needletail
Dry, rattling trill with softer ending; rapid series of clipped notes dropping slightly in pitch as the bird gains speed.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Silver-backed Needletail
Found from northeastern India and China through Southeast Asia to the Greater Sundas. Partially migratory; winters south in forest and open areas.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
保护状况
Silver-backed Needletail
Alpine Swift
How to Tell Them Apart
Silver-backed Needletail
Large; blackish-brown body; distinctive large silvery-white back patch between wings; white throat and undertail coverts; short spiny tail; Southeast Asian species closely resembling White-throated Needletail but silvery-white saddle more extensive.
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
About These Birds
Silver-backed Needletail
银背针尾雨燕分布于东南亚，从印度东北部至中国南部和大巽他群岛。背部具银白色鞍形斑，飞行极为迅速。以飞行昆虫为食，常在高空飞行，栖息于热带低地至山地森林。部分种群具迁徙习性。
Alpine Swift
高山雨燕在欧洲山地和岩壁上繁殖，以白色腹部和较大体型为特征的长距离迁徙鸟类。