Polynesian Swiftlet vs African Swift
Aerodramus leucophaeus 对比 Apus barbatus
Side-by-Side Comparison
| 属性 | Polynesian Swiftlet | African Swift |
|---|---|---|
| 学名 | Aerodramus leucophaeus | Apus barbatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.7 cm (9.3 in) | 34.2 cm (13.5 in) |
| 体重 | 13.4 g (0.47 oz) | 42.666666666666664 g (1.51 oz) |
| 食性 | Aerial insectivore catching tiny flying insects, midges, and airborne spiders in fast low-altitude flight near … | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 产卵数 | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Polynesian Swiftlet
High twittering; thin 'chip-chip' over French Polynesian islands; echolocation clicks in cave roosts; light-colored underparts distinguish it visually; calls unremarkable
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Polynesian Swiftlet
Found across French Polynesia including the Society Islands, Marquesas, and Tuamotu. Resident in forest and open areas; 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.
保护状况
Polynesian Swiftlet
African Swift
How to Tell Them Apart
Polynesian Swiftlet
Small; dark brown-grey upperparts with minimal gloss; pale grey rump band; underparts whitish-grey; forked tail; East Polynesian endemic from Society Islands; slightly more uniformly dark than some Pacific congeners.
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
Polynesian Swiftlet
一种小型金丝燕（体长10-11厘米），分布于法属波利尼西亚各地，包括社会群岛、马克萨斯群岛和澳斯特拉尔群岛。属雨燕科（Apodidae），是南太平洋分布较广的金丝燕。
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。