Marquesas Swiftlet vs African Swift
Aerodramus ocistus 比較対象 Apus barbatus
Side-by-Side Comparison
| 属性 | Marquesas Swiftlet | African Swift |
|---|---|---|
| 学名 | Aerodramus ocistus | Apus barbatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 34.2 cm (13.5 in) |
| 体重 | 9.5 g (0.34 oz) | 42.666666666666664 g (1.51 oz) |
| 食性 | Entirely aerial diet of tiny insects and spiders; forages in large flocks over open country … | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 一腹卵数 | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Marquesas Swiftlet
High thin twittering; 'chip-chip' over Marquesas Islands; echolocation clicks in cave roosts; poorly documented; thin high-pitched calls typical of small Pacific swiftlets
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Marquesas Swiftlet
Endemic to the Marquesas Islands of French Polynesia. Resident on major islands including Nuku Hiva and Hiva Oa. Nests in sea caves.
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.
保全状況
Marquesas Swiftlet
African Swift
How to Tell Them Apart
Marquesas Swiftlet
Small; dark brownish-grey upperparts; pale buff-grey rump band; underparts pale grey-white; forked tail; Marquesas Islands endemic in French Polynesia; closely related to Polynesian Swiftlet but isolated on its own archipelago.
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.
About These Birds
Marquesas Swiftlet
マルケサスアナツバメはフランス領ポリネシアのマルケサス諸島に固有のアナツバメである。
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。