Ridgetop Swiftlet vs White-chested Swift
Collocalia isonota 比較対象 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Ridgetop Swiftlet | White-chested Swift |
|---|---|---|
| 学名 | Collocalia isonota | Cypseloides lemosi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 30.0 cm (11.8 in) |
| 体重 | 6.483333333333333 g (0.23 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | -- | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 一腹卵数 | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Ridgetop Swiftlet
Thin, high twittering; soft 'chip-chip' over Solomon Islands ridges; echolocation clicks in caves; one of smallest swiftlets; calls barely audible; rapid chittering in flight
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
Ridgetop Swiftlet
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.
保全状況
Ridgetop Swiftlet
White-chested Swift
How to Tell Them Apart
Ridgetop Swiftlet
Tiny swiftlet; glossy dark blue-green upperparts; pale buff rump band; dark sooty-brown underparts; slightly forked tail; recently described Philippine endemic; differs from congeners primarily in voice and ridge-top ridge habitat.
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
Ridgetop Swiftlet
A small swiftlet (9-10 cm) found in montane regions of the Philippines and the Lesser Sundas. Dark glossy plumage. Aerial insectivore. Recently split from Glossy Swiftlet. A high-altitude specialist, often found above 1,000 m on mountain ridges.
White-chested Swift
コロンビアアマツバメはコロンビア南部に限定的に生息する希少なアマツバメである。