African Swift vs Vaux's Swift
Apus barbatus 比較対象 Chaetura vauxi
Side-by-Side Comparison
| 属性 | African Swift | Vaux's Swift |
|---|---|---|
| 学名 | Apus barbatus | Chaetura vauxi |
| 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) | 22.3 cm (8.8 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 18.033333333333335 g (0.64 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. |
| 一腹卵数 | 1-2 | 1-7 |
| 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.
Vaux's Swift
Soft, high sibilant whisper followed by ticking notes; delicate trill barely audible beyond immediate roosting vicinity.
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.
Vaux's Swift
Breeds in western North America from Alaska south to Central America. Migrates to winter in Venezuela and northwestern South America.
保全状況
African Swift
Vaux's 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.
Vaux's Swift
Small; dark sooty-brown upperparts; pale grey rump slightly paler than back; underparts pale greyish-brown; short spiny tail; smaller and paler-bellied than Chimney Swift; Pacific coast North American species with subtly …
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。
Vaux's Swift
アラスカから中米にかけての北米西部に生息する小型アマツバメ（11〜12 cm）。煙突アマツバメに似るが小さい暗い灰褐色の羽衣。棘状の尾。空中昆虫食性。木の洞に営巣。