Black-nest Swiftlet vs White-chested Swift
Aerodramus maximus 对比 Cypseloides lemosi
Side-by-Side Comparison
| 属性 | Black-nest Swiftlet | White-chested Swift |
|---|---|---|
| 学名 | Aerodramus maximus | Cypseloides lemosi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 25.8 cm (10.2 in) | 30.0 cm (11.8 in) |
| 体重 | 16.8 g (0.59 oz) | 28.400000000000002 g (1.00 oz) |
| 食性 | Aerial plankton feeder taking tiny midges, fungus gnats, and ballooning spiders in rapid coursing flights. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 产卵数 | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black-nest Swiftlet
Rapid twittering; thin 'tsit-tsit' over Southeast Asian forest; audible echolocation clicks in caves; larger than many swiftlets; slightly louder calls; colonial nester with dark nest
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
Black-nest Swiftlet
Found from the Nicobar Islands through the Thai-Malay Peninsula, Borneo, and the Philippines. Famous for edible nests made of pure saliva.
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
Black-nest Swiftlet
White-chested Swift
How to Tell Them Apart
Black-nest Swiftlet
Medium-small; dark sooty-brown upperparts with rump slightly paler grey-brown; underparts dark sooty-grey; forked tail; one of the largest Aerodramus swiftlets; named for its distinctive all-black saliva nest rather than visible …
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
Black-nest Swiftlet
一种中型金丝燕（体长13-14厘米），分布于马来半岛至印度尼西亚及菲律宾。属雨燕科（Apodidae），是金丝燕中体型最大者之一，同样以唾液筑巢。
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。