Short-tailed Swift vs White-chested Swift
Chaetura brachyura 对比 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Short-tailed Swift | White-chested Swift |
|---|---|---|
| 学名 | Chaetura brachyura | Cypseloides lemosi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.7 cm (9.3 in) | 30.0 cm (11.8 in) |
| 体重 | 18.625 g (0.66 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | Feeds exclusively on aerial plankton — tiny flies, aphids, and spiders — captured in continuous … | 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
Short-tailed Swift
Harsh, screaming chatter with emphatic delivery; loud coarse notes erupting suddenly during competitive aerial encounters.
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
Short-tailed Swift
Found across South America east of the Andes, from Trinidad and the Guianas south to Bolivia and the Río de la Plata. Lowland forest.
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
Short-tailed Swift
White-chested Swift
How to Tell Them Apart
Short-tailed Swift
Small; dark sooty-brown upperparts; very pale whitish rump and tail contrasting sharply with dark body; underparts pale greyish; extremely short tail giving distinctive blunt-ended flight silhouette; widespread Trinidad to Argentina.
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
Short-tailed Swift
短尾雨燕 (Chaetura brachyura)，体长约10厘米，尾极短，身体粗壮。体羽黑褐色，腰部灰色，喉部淡色。广泛分布于中美洲和南美洲北部。以飞行昆虫为食，在空中高速飞翔，常成群活动。
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。