Mossy-nest Swiftlet vs Alpine Swift
Aerodramus salangana 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Mossy-nest Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus salangana | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 22.7 cm (8.9 in) | 43.9 cm (17.3 in) |
| 体重 | 11.3 g (0.40 oz) | 97.5 g (3.44 oz) |
| 食性 | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mossy-nest Swiftlet
Rapid thin twittering; 'chip-chip' over Borneo forests; echolocation clicks in cave roosts; uses mossy nest material; calls softly in colonial roosts; moderate-pitched swiftlet
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Mossy-nest Swiftlet
Found from the Philippines through Borneo and Sulawesi to the Moluccas. Resident in lowland and hill forest, often over rivers.
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
Mossy-nest Swiftlet
Alpine Swift
How to Tell Them Apart
Mossy-nest Swiftlet
Small; dark grey-brown upperparts with slight iridescence; pale grey-brown rump slightly paler than back; underparts greyish-white; forked tail; Sundaic swiftlet building mossy nests; rump contrast moderate, less striking than White-rumped.
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
Mossy-nest Swiftlet
一种小型金丝燕（体长11-12厘米），分布于马来半岛至印度尼西亚和菲律宾。体羽深色。属雨燕科（Apodidae），在东南亚岛屿洞穴中大量繁殖。
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。