African Swift vs Cave Swiftlet
Apus barbatus 比較対象 Collocalia linchi
Side-by-Side Comparison
| 属性 | African Swift | Cave Swiftlet |
|---|---|---|
| 学名 | Apus barbatus | Collocalia linchi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 34.2 cm (13.5 in) | 18.7 cm (7.4 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 6.05 g (0.21 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Entirely aerial diet of tiny insects and spiders; forages in large flocks over open country … |
| 一腹卵数 | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Cave Swiftlet
Soft, rapid twittering; thin 'tsit-tsit' over Javan forests; audible echolocation clicks inside caves; colonial; produces squeaky chattering at roost sites; calls weakly in flight
Geographic Range & Migration
African Swift
Found across sub-Saharan Africa from Senegal east to Ethiopia and south to South Africa. One of Africa's most common swift species.
Cave Swiftlet
Found in Sumatra, Java, Bali, and surrounding Indonesian islands. Resident in forest, cultivated land, and villages. Nests in rock crevices.
保全状況
African Swift
Cave Swiftlet
How to Tell Them Apart
African Swift
Dark sooty-brown throughout; pale throat patch whitish-grey; underparts slightly paler; broadly similar to Common Swift but slightly larger and marginally paler below; widespread Sub-Saharan African species.
Cave Swiftlet
Tiny; dark blue-black upperparts with faint gloss; pale greyish rump band; underparts whitish with grey-buff flanks; moderately forked tail; widespread in caves across Sundaland; less glossy and less white below …
About These Birds
African Swift
アフリカクロアマツバメはサハラ以南のアフリカに広く分布し、岩壁や建物の隙間に巣を作る。
Cave Swiftlet
ジャワアナツバメは東南アジアの島々に広く分布し、洞窟や岩の割れ目に巣を作るアナツバメである。