Seychelles Swiftlet vs African Swift
Aerodramus elaphrus 对比 Apus barbatus
Side-by-Side Comparison
| 属性 | Seychelles Swiftlet | African Swift |
|---|---|---|
| 学名 | Aerodramus elaphrus | Apus barbatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 22.6 cm (8.9 in) | 34.2 cm (13.5 in) |
| 体重 | 11.266666666666666 g (0.40 oz) | 42.666666666666664 g (1.51 oz) |
| 食性 | Feeds aerially on tiny flying insects and drifting spiders; often forages in mixed-species flocks over … | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 产卵数 | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Seychelles Swiftlet
Rapid twittering; thin 'tsit-tsit' over Seychelles islands; audible echolocation clicks in caves; endangered endemic; calls weakly in small flocks over forest and coast
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Seychelles Swiftlet
Endemic to the Seychelles Islands in the western Indian Ocean. Resident on the main granitic islands including Mahé. 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
Seychelles Swiftlet
African Swift
How to Tell Them Apart
Seychelles Swiftlet
Small; dark brownish-grey upperparts with slight gloss; pale grey-buff rump band; underparts whitish-grey; forked tail; Seychelles endemic and vulnerable due to restricted range; slightly larger and less glossy than sympatric …
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
Seychelles Swiftlet
一种小型金丝燕（体长10-11厘米），特产于印度洋塞舌尔群岛。体羽深灰褐色。属雨燕科（Apodidae），在岛上的洞穴和悬崖上繁殖，种群数量有限。
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。