Volcano Swiftlet vs Alpine Swift
Aerodramus vulcanorum 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Volcano Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus vulcanorum | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 24.0 cm (9.4 in) | 43.9 cm (17.3 in) |
| 体重 | 14.4 g (0.51 oz) | 97.5 g (3.44 oz) |
| 食性 | Entirely aerial diet of tiny insects and spiders; forages in large flocks over open country … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | 2 | 1-4 |
| Population Trend | — | — |
Song & Call Comparison
Volcano Swiftlet
High twittering calls; thin 'tsit' notes over Javan volcanic mountains; echolocation clicks in cave roosts; slightly larger than many swiftlets; calls produce soft chattering
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Volcano Swiftlet
Endemic to the volcanoes of Java at 1,000–3,400 m. Resident in montane forest near active and dormant craters. Very restricted range.
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
Volcano Swiftlet
Alpine Swift
How to Tell Them Apart
Volcano Swiftlet
Small; dark sooty-brown upperparts; grey-brown rump barely paler than back; underparts dark grey-brown; forked tail; restricted to Java's volcanoes; notably lacks a distinct pale rump band contrasting with the dark …
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
Volcano Swiftlet
一种小型金丝燕（体长10-11厘米），特产于印度尼西亚爪哇、苏门答腊和巴厘岛的高山火山地区。属雨燕科（Apodidae），在火山洞穴中繁殖，是适应火山地貌的特有种。
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。