African Swift vs Fernando Po Swift
Apus barbatus 对比 Apus sladeniae
Side-by-Side Comparison
| 属性 | African Swift | Fernando Po Swift |
|---|---|---|
| 学名 | Apus barbatus | Apus sladeniae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Data Deficient |
| 体长 | — | — |
| 翼展 | 34.2 cm (13.5 in) | 35.4 cm (13.9 in) |
| 体重 | 42.666666666666664 g (1.51 oz) | 42.0 g (1.48 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Aerial insectivore relying entirely on flying insects (midges, gnats, small beetles) and airborne spiders. |
| 产卵数 | 1-2 | 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.
Fernando Po Swift
Deep, resonant wingbeat audible alongside soft chips; quiet churring call barely distinguishable from surrounding ambient sounds.
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.
Fernando Po Swift
Found on Bioko Island in the Gulf of Guinea and adjacent Cameroon highlands. Restricted to mountain forests and highland areas.
保护状况
African Swift
Fernando Po 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.
Fernando Po Swift
Dark sooty-brown overall; pale greyish throat and chin patch; underparts slightly paler; broadly similar to African Swift; data-deficient Bioko Island endemic; plumage details poorly documented from limited specimens.
About These Birds
African Swift
非洲黑雨燕广泛分布于撒哈拉以南非洲，在岩壁和建筑物缝隙中筑巢。
Fernando Po Swift
A medium-sized swift (14-15 cm) found on the island of Bioko (formerly Fernando Po) in the Gulf of Guinea, Equatorial Guinea. Dark plumage. Aerial insectivore. A poorly known, range-restricted species limited to the volcanic island. Very limited ecological data available.