Moluccan Swiftlet vs Alpine Swift
Aerodramus infuscatus 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Moluccan Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus infuscatus | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 21.2 cm (8.3 in) | 43.9 cm (17.3 in) |
| 体重 | 15.25 g (0.54 oz) | 97.5 g (3.44 oz) |
| 食性 | Aerial plankton specialist catching tiny flies, gnats, and airborne spiders in tight acrobatic flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | -- | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Moluccan Swiftlet
Thin twittering; soft 'chip-chip' calls over Maluku islands; echolocation clicks in caves; moderate-pitched for swiftlet; colonial roosts noisy with overlapping calls
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Moluccan Swiftlet
Found on the Moluccan islands of Indonesia including Halmahera, Seram, and Ambon. Resident in forest and open habitats. Moluccan endemic.
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
Moluccan Swiftlet
Alpine Swift
How to Tell Them Apart
Moluccan Swiftlet
Small to medium; dark brown-grey upperparts with pale buff rump band; underparts pale whitish-grey; forked tail; North Moluccan endemic; slightly larger than many congeners with relatively prominent pale rump contrasting …
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
Moluccan Swiftlet
一种小型金丝燕（体长11厘米），分布于印度尼西亚摩鹿加群岛。体羽深褐色。属雨燕科（Apodidae），空中食虫，在岛屿洞穴中繁殖。
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。