African Swift vs Bradfield's Swift
Apus barbatus 比較対象 Apus bradfieldi
Side-by-Side Comparison
| 属性 | African Swift | Bradfield's Swift |
|---|---|---|
| 学名 | Apus barbatus | Apus bradfieldi |
| 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) | 35.2 cm (13.9 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 44.25 g (1.56 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Entirely aerial insectivore consuming swarms of tiny flies, winged ants, and ballooning spiders on the … |
| 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.
Bradfield's Swift
Pure, whistled two-note phrase; first note high and sustained, second lower and brief, repeated every few seconds clearly.
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.
Bradfield's Swift
Found in Namibia and adjacent parts of South Africa, Botswana, and Angola. Resident in rocky desert, escarpment cliffs, and semi-arid terrain.
保全状況
African Swift
Bradfield'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.
Bradfield's Swift
Dark sooty-brown overall; pale greyish throat patch; underparts slightly paler; large for an African Apus swift; Southern Africa dry-country specialist; slightly larger and greyer-toned than Pallid Swift with less pale …
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。
Bradfield's Swift
ブラッドフィールドアマツバメはナミビアとアンゴラ周辺の南部アフリカに生息する淡色のアマツバメである。