Papuan Swiftlet vs Alpine Swift
Aerodramus papuensis 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Papuan Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus papuensis | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Data Deficient | Least Concern |
| 体长 | — | — |
| 翼展 | 26.5 cm (10.4 in) | 43.9 cm (17.3 in) |
| 体重 | 20.4 g (0.72 oz) | 97.5 g (3.44 oz) |
| 食性 | Feeds aerially on tiny flying insects and drifting spiders; often forages in mixed-species flocks over … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 产卵数 | -- | 1-4 |
| Population Trend | — | — |
Song & Call Comparison
Papuan Swiftlet
High thin twittering; 'tsit-tsit' over New Guinea; echolocation clicks used in cave roosts; larger than many swiftlets; slightly deeper calls; data deficient in recordings
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Papuan Swiftlet
Found in lowland New Guinea and the Bismarck Archipelago. Resident in lowland rainforest and forest edge. Little-known Papuan 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
Papuan Swiftlet
Alpine Swift
How to Tell Them Apart
Papuan Swiftlet
Small; dark brownish-grey upperparts; pale grey rump band; underparts pale grey; forked tail; New Guinea swiftlet; large for the genus; data-deficient with limited specimens; rump band moderately contrasting with 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
Papuan Swiftlet
一种小型金丝燕（体长11-12厘米），分布于新几内亚低地和丘陵森林中。体羽深色，腰部略浅。属雨燕科（Apodidae），新几内亚地区较常见的金丝燕之一。
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。