Mayr's Swiftlet vs Alpine Swift
Aerodramus orientalis 对比 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Mayr's Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Aerodramus orientalis | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Data Deficient | Least Concern |
| 体长 | — | — |
| 翼展 | 25.0 cm (9.8 in) | 43.9 cm (17.3 in) |
| 体重 | 13.3 g (0.47 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 | — | — |
Habitat Comparison
Song & Call Comparison
Mayr's Swiftlet
Thin twittering calls; 'tsit-tsit' notes; echolocation clicks used in caves; data deficient species from Melanesia; poorly documented; calls indistinguishable from related species
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Mayr's Swiftlet
Found in the mountains of New Guinea (Jayawijaya and Saruwaged ranges) at 1,500–3,400 m. Resident in montane forest. Poorly known.
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
Mayr's Swiftlet
Alpine Swift
How to Tell Them Apart
Mayr's Swiftlet
Small; dark brownish-grey upperparts with slight gloss; pale grey rump band; underparts pale whitish-grey; forked tail; Eastern Melanesian swiftlet; closely resembles Uniform Swiftlet but differs in rump contrast and geographic …
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
Mayr's Swiftlet
一种小型金丝燕（体长10-11厘米），分布于新几内亚及邻近岛屿。体羽深色。属雨燕科（Apodidae），空中食虫，在洞穴中繁殖。
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。