Palau Swiftlet vs African Swift
Aerodramus pelewensis 对比 Apus barbatus
Side-by-Side Comparison
| 属性 | Palau Swiftlet | African Swift |
|---|---|---|
| 学名 | Aerodramus pelewensis | Apus barbatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 21.5 cm (8.5 in) | 34.2 cm (13.5 in) |
| 体重 | 13.3 g (0.47 oz) | 42.666666666666664 g (1.51 oz) |
| 食性 | Aerial plankton specialist catching tiny flies, gnats, and airborne spiders in tight acrobatic flight. | 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
Palau Swiftlet
Rapid thin twittering; high 'tsit' notes over Palau islands; audible echolocation clicks in cave and building roosts; endemic island species; calls weakly in small flocks
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Palau Swiftlet
Endemic to the Palau Islands in Micronesia. Resident on all major islands; nests in limestone caves. Small but stable population.
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
Palau Swiftlet
African Swift
How to Tell Them Apart
Palau Swiftlet
Small; dark grey-brown upperparts; pale buff-grey rump band; underparts pale greyish-white; forked tail; Palau Island endemic; closely resembles Caroline Swiftlet but restricted to Palau and differing in subtle measurements.
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
Palau Swiftlet
一种小型金丝燕（体长10-11厘米），特产于西太平洋帕劳群岛。体羽深色。属雨燕科（Apodidae），是帕劳的特有种，在岛上洞穴中繁殖。
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。