Satin Swiftlet vs White-chested Swift
Collocalia uropygialis 对比 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Satin Swiftlet | White-chested Swift |
|---|---|---|
| 学名 | Collocalia uropygialis | Cypseloides lemosi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 30.0 cm (11.8 in) |
| 体重 | 5.4 g (0.19 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | Aerial insectivore catching tiny flying insects, midges, and airborne spiders in fast low-altitude flight near … | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 产卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Satin Swiftlet
Very thin, high twittering; rapid 'chip' notes over Bismarck Archipelago islands; echolocation clicks inside cave roosts; tiny; call barely distinguishable from other small swiftlets
White-chested Swift
High, thin twittering; soft 'tsit' calls in flight; calls over Colombian waterfalls; very poorly known; thin, reedy contact notes; one of most rarely documented swifts
Geographic Range & Migration
Satin Swiftlet
Found in the Moluccas and southwestern Pacific including New Guinea and Solomon Islands. Resident in lowland forest, forest edge, and open areas.
White-chested Swift
Known from Colombia and adjacent Ecuador. One of the world's rarest swifts; recorded at waterfalls in humid forest foothills at 500–1,200 m.
保护状况
Satin Swiftlet
White-chested Swift
How to Tell Them Apart
Satin Swiftlet
Tiny; blackish upperparts with satiny blue-green gloss; white rump band; underparts dark sooty-grey; forked tail; Oceanian swiftlet with satin-like sheen on upperparts distinguishing it from duller relatives in the region.
White-chested Swift
Black upperparts and wings; distinctive large white chest patch contrasting sharply with black throat and belly; white confined to central breast; Colombian endemic with unique bold bicoloured plumage unlike any …
About These Birds
Satin Swiftlet
缎背金丝燕(Collocalia uropygialis)是一种体长9-10厘米的小型金丝燕，分布于俾斯麦群岛和所罗门群岛。上体深色具缎状光泽，腰部淡色。空中捕食昆虫，在洞穴和岩壁上筑巢。
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。