Drab Swiftlet vs White-chested Swift
Collocalia neglecta 对比 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Drab Swiftlet | White-chested Swift |
|---|---|---|
| 学名 | Collocalia neglecta | 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 | 5.9 g (0.21 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats. | 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
Drab Swiftlet
High, thin twittering; 'tsit-tsit' in flight; echolocation clicks inside cave roosts; small size and unremarkable plumage matched by simple, thin high-pitched calls
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
Drab Swiftlet
Found on the Andaman and Nicobar Islands and Simeuluë Island off Sumatra. Resident in coastal and lowland habitats. Sedentary.
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
Drab Swiftlet
White-chested Swift
How to Tell Them Apart
Drab Swiftlet
Tiny; dull brownish-grey upperparts with little or no gloss; whitish-buff rump band; pale greyish-buff underparts; forked tail; as the name implies, lacks the iridescent gloss of most Collocalia swiftlets; island …
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
Drab Swiftlet
暗色金丝燕(Collocalia neglecta)是一种体长10厘米的小型金丝燕，分布于菲律宾、苏拉威西和马鲁古群岛。深灰褐色羽毛，光泽度低于近似种。空中捕食昆虫，在洞穴和岩缝中筑巢。
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。