Caroline Swiftlet vs African Swift
Aerodramus inquietus 对比 Apus barbatus
Side-by-Side Comparison
| 属性 | Caroline Swiftlet | African Swift |
|---|---|---|
| 学名 | Aerodramus inquietus | Apus barbatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 22.8 cm (9.0 in) | 34.2 cm (13.5 in) |
| 体重 | 11.0 g (0.39 oz) | 42.666666666666664 g (1.51 oz) |
| 食性 | Feeds on aerial plankton including tiny flies and spiders; forages in large noisy flocks above … | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Caroline Swiftlet
Thin twittering calls; 'tsit-tsit' over Caroline Islands; echolocation clicks in cave roosts; moderate-pitched for swiftlet; produces soft chattering at colonial nesting sites
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Caroline Swiftlet
Found across the Caroline Islands of Micronesia including Pohnpei and Chuuk. Resident in lowland forest and cave systems.
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
Caroline Swiftlet
African Swift
How to Tell Them Apart
Caroline Swiftlet
Small; dark grey-brown upperparts; pale buff rump band; underparts pale greyish-white; forked tail; Micronesian endemic from Caroline Islands; very similar to Palau Swiftlet but distributed on a distinct island group.
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
Caroline Swiftlet
一种小型金丝燕（体长10-11厘米），特产于密克罗尼西亚卡罗林群岛（波纳佩岛、科斯雷岛）。体羽深色。属雨燕科（Apodidae），是太平洋岛屿的特有种。
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。