Silver-backed Needletail vs Chestnut-collared Swift
Hirundapus cochinchinensis 对比 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Silver-backed Needletail | Chestnut-collared Swift |
|---|---|---|
| 学名 | Hirundapus cochinchinensis | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.6 cm (14.4 in) | 26.0 cm (10.2 in) |
| 体重 | 85.97999999999999 g (3.03 oz) | 21.8 g (0.77 oz) |
| 食性 | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 产卵数 | -- | 2 |
| 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.
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
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.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保护状况
Silver-backed Needletail
Chestnut-collared 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.
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
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。
Chestnut-collared Swift
栗领雨燕栖息于中美洲和南美洲北部的山地。