White-chested Swift vs Lesser Swallow-tailed Swift
Cypseloides lemosi 对比 Panyptila cayennensis
Side-by-Side Comparison
| 属性 | White-chested Swift | Lesser Swallow-tailed Swift |
|---|---|---|
| 学名 | Cypseloides lemosi | Panyptila cayennensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 30.0 cm (11.8 in) | 23.8 cm (9.4 in) |
| 体重 | 28.400000000000002 g (1.00 oz) | 21.8 g (0.77 oz) |
| 食性 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Aerial insectivore feeding on swarms of small flies, winged ants, and tiny beetles during sustained … |
| 产卵数 | -- | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Lesser Swallow-tailed Swift
Dry, clicking chatter interspersed with thin whistles; rapid mechanical trill delivered with persistent energy throughout day.
Geographic Range & Migration
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.
Lesser Swallow-tailed Swift
Found from Mexico south through Central America and South America to Bolivia and Brazil. Resident in lowland and foothill forest edge.
保护状况
White-chested Swift
Lesser Swallow-tailed Swift
How to Tell Them Apart
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 …
Lesser Swallow-tailed Swift
Black upperparts; white throat and white flanks; white rump patch; deeply forked long tail; smaller version of Great Swallow-tailed Swift; widespread from Mexico to South America; forked tail and bold …
About These Birds
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。
Lesser Swallow-tailed Swift
A medium-sized swift (13-14 cm) with a moderately forked tail and white throat patch. Found from southern Mexico through Central America to Peru and Brazil. Dark plumage. Aerial insectivore, foraging over forest canopy and clearings. Nests under overhanging cliffs and bridges.