Himalayan Swiftlet vs Alpine Swift
Aerodramus brevirostris 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Himalayan Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus brevirostris | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 24.6 cm (9.7 in) | 43.9 cm (17.3 in) |
| 体重 | 12.65 g (0.45 oz) | 97.5 g (3.44 oz) |
| 食性 | Small aerial insectivore feeding on minute flying insects and spiders; forages over forest canopy and … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | 2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Himalayan Swiftlet
Thin twittering calls; 'chip-chip' over Himalayan valleys; audible echolocation clicks in caves; moderate-pitched; colonial roosts produce chattering; calls in swift flocks at dusk
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Himalayan Swiftlet
Breeds in the Himalayas from India to southern China and Indochina. Partially migratory, wintering south to peninsular India and Southeast Asia.
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
Himalayan Swiftlet
Alpine Swift
How to Tell Them Apart
Himalayan Swiftlet
Small; dark grey-brown upperparts with faint gloss; pale grey rump band; underparts whitish-grey; forked tail; Himalayan and Southeast Asian highlands species; slightly browner than Black-nest Swiftlet with proportionally narrower rump …
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
Himalayan Swiftlet
一种小型金丝燕（体长13-14厘米），分布于尼泊尔喜马拉雅山麓至东南亚和中国西南部。属雨燕科（Apodidae），空中食虫，是分布最广泛的金丝燕之一。
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。