Himalayan Swiftlet vs Alpine Swift
Aerodramus brevirostris 比較対象 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Himalayan Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus brevirostris | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 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 … |
| 一腹卵数 | 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.
保全状況
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
ヒマラヤアナツバメはヒマラヤから東南アジアにかけて分布し、短い嘴が特徴的なアナツバメである。
Alpine Swift
アルプスアマツバメはヨーロッパの山岳地帯と岩壁に繁殖し、白い腹と大きな体が特徴的な長距離渡り鳥である。