African Swift vs Grey-rumped Swift
Apus barbatus 比較対象 Chaetura cinereiventris
Side-by-Side Comparison
| 属性 | African Swift | Grey-rumped Swift |
|---|---|---|
| 学名 | Apus barbatus | Chaetura cinereiventris |
| 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) | 20.9 cm (8.2 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 16.15 g (0.57 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 一腹卵数 | 1-2 | 2-4 |
| 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.
Grey-rumped Swift
Soft, rippling trill with gentle buzzy overtones; light aerial call carrying a faint liquid quality on calm mornings.
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.
Grey-rumped Swift
Found from Nicaragua south through Central America and northwestern South America to Bolivia and Brazil. Resident in lowland forest and edge.
保全状況
African Swift
Grey-rumped 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.
Grey-rumped Swift
Small; dark blackish-brown upperparts; pale grey rump contrasting with dark back; underparts dark grey-brown; short spiny tail; Neotropical species with the grey rump as key field mark; widespread from Caribbean …
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。
Grey-rumped Swift
中米から南ブラジルの湿潤林に生息する中型アマツバメ（11〜12 cm）。対照的な淡い灰色の腰帯を持つ暗灰色の羽衣。短い棘状の尾。空中で昆虫を捕食。