African Swift vs Cook's Swift
Apus barbatus 比較対象 Apus cooki
Side-by-Side Comparison
| 属性 | African Swift | Cook's Swift |
|---|---|---|
| 学名 | Apus barbatus | Apus cooki |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 34.2 cm (13.5 in) | — |
| 体重 | 42.666666666666664 g (1.51 oz) | 42.949999999999996 g (1.52 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Catches aerial plankton — tiny midges, gnats, and ballooning spiders — continuously during soaring flight. |
| 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.
Cook's Swift
Bright, flute-like series of liquid notes; clear melodic phrase ascending slightly then resolving on a sustained pure tone.
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.
Cook's Swift
Found from southern Thailand through the Thai-Malay Peninsula to Sumatra, Borneo, and adjacent islands. Resident in lowland forest.
保全状況
African Swift
Cook'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.
Cook's Swift
Dark sooty-brown upperparts; white rump patch; pale white throat; dark underparts; deeply forked tail; recently split taxon from Pacific Swift complex; plumage essentially identical to close relatives, distinguished primarily by …
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。
Cook's Swift
A medium-sized swift (16-17 cm) found in montane forests from the Malay Peninsula through Southeast Asia to southern China. Dark plumage with a pale throat. Aerial insectivore. Named after Frederick Cook. Until recently considered conspecific with Pacific Swift.