Chimney Swift vs White-chested Swift
Chaetura pelagica 对比 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Chimney Swift | White-chested Swift |
|---|---|---|
| 学名 | Chaetura pelagica | Cypseloides lemosi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 24.9 cm (9.8 in) | 30.0 cm (11.8 in) |
| 体重 | 22.666666666666668 g (0.80 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | Aerial forager on tiny insects and wind-dispersed spiders; forages near water surfaces where insects concentrate. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 产卵数 | 2-7 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chimney Swift
Rapid, liquid twittering with bright cheerful quality; chi-chi-chi staccato notes carrying well across open sky at dusk.
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
Chimney Swift
Breeds in eastern North America from Canada south to Texas. Long-distance migrant wintering in the upper Amazon basin of Peru and Brazil.
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
Chimney Swift
White-chested Swift
How to Tell Them Apart
Chimney Swift
Small; uniformly dark sooty-grey overall with slightly paler grey throat and chin; no contrasting rump patch; short spiny tail; sexes identical; North American chimney-nesting species famous for its swirling pre-roost …
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
Chimney Swift
烟囱雨燕（约25克）几乎将整个生命都在空中度过，仅在繁殖时着地。繁殖于北美东部，越冬于南美洲。以空中飞虫为食。历史上在烟囱和空心树中筑巢。无危；但因烟囱封堵及昆虫减少，数量明显下降。
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。