African Swift vs Ashy-tailed Swift
Apus barbatus 比較対象 Chaetura andrei
Side-by-Side Comparison
| 属性 | African Swift | Ashy-tailed Swift |
|---|---|---|
| 学名 | Apus barbatus | Chaetura andrei |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 34.2 cm (13.5 in) | 22.3 cm (8.8 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 17.1 g (0.60 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| 一腹卵数 | 1-2 | -- |
| Population Trend | — | — |
Song & Call Comparison
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Ashy-tailed Swift
Dry rattling chatter with sharp staccato onset; brief bursts of clicking notes followed by descending hissing sound.
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.
Ashy-tailed Swift
Found in eastern Brazil, Bolivia, Paraguay, and northern Argentina. Partially migratory; moves north in austral winter. Lowland forest.
保全状況
African Swift
Ashy-tailed Swift
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.
Ashy-tailed Swift
Small; dark sooty-brown overall; distinctly pale ashy-grey rump and tail contrasting with dark body; underparts dark grey-brown; ashy rump and tail the defining feature separating it from other South American …
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。
Ashy-tailed Swift
ベネズエラ・ギアナ・トリニダードの低地林に生息する小型アマツバメ（11〜12 cm）で、ブラジル南東部にも別集団が存在。灰褐色の腰と下尾筒を持つ暗い羽衣。棘状の尾先。空中で昆虫を捕食。