Uniform Swiftlet vs White-collared Swift
Aerodramus vanikorensis 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Uniform Swiftlet | White-collared Swift |
|---|---|---|
| 学名 | Aerodramus vanikorensis | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.2 cm (9.1 in) | 42.5 cm (16.7 in) |
| 体重 | 10.4 g (0.37 oz) | 106.45 g (3.75 oz) |
| 食性 | Tiny aerial insectivore taking small flying insects and spiders; congregates where insects emerge over water. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 产卵数 | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Uniform Swiftlet
Thin, high-pitched twittering; 'tsit-tsit' notes over Pacific islands; echolocation clicks inside caves; uniform dark plumage matched by simple unremarkable call quality
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
Geographic Range & Migration
Uniform Swiftlet
Found across Melanesia from the Moluccas and New Guinea east through the Solomons, Vanuatu, and Fiji. Resident in diverse habitats.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
保护状况
Uniform Swiftlet
White-collared Swift
How to Tell Them Apart
Uniform Swiftlet
Small; dark grey-brown plumage throughout with rump barely or not at all paler than back; underparts slightly paler grey-brown; forked tail; unusually for Aerodramus, has minimal rump contrast; widespread Melanesian …
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
About These Birds
Uniform Swiftlet
一种小型金丝燕（体长11-12厘米），广泛分布于从马来半岛经印度尼西亚至美拉尼西亚的地区。体羽深色。属雨燕科（Apodidae），是西太平洋岛屿上常见的金丝燕。
White-collared Swift
白领雨燕广泛分布于拉丁美洲山地，以白色颈环为特征的大型雨燕。