White-chested Swift vs Silver-rumped Spinetail
Cypseloides lemosi 比較対象 Rhaphidura leucopygialis
Side-by-Side Comparison
| 属性 | White-chested Swift | Silver-rumped Spinetail |
|---|---|---|
| 学名 | Cypseloides lemosi | Rhaphidura leucopygialis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.0 cm (11.8 in) | 23.2 cm (9.1 in) |
| 体重 | 28.400000000000002 g (1.00 oz) | 13.65 g (0.48 oz) |
| 食性 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … |
| 一腹卵数 | -- | -- |
| 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
Silver-rumped Spinetail
High, thin squeaking notes delivered at rapid pace; silvery twittering with brief pauses forming loose conversational chatter.
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.
Silver-rumped Spinetail
Found from Myanmar and the Thai-Malay Peninsula south through Sumatra and Borneo. Resident in lowland and hill forest. Uncommon.
保全状況
White-chested Swift
Silver-rumped Spinetail
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 …
Silver-rumped Spinetail
Small; dark blackish-brown upperparts; silvery-white rump band gleaming in flight; underparts pale whitish-grey; short spiny tail tips; Sundaic forest specialist; silvery rather than clean white rump distinguishes from White-rumped Spinetail.
About These Birds
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。
Silver-rumped Spinetail
A small spinetail swift (10-11 cm) found in lowland forests from the Malay Peninsula through Sumatra and Borneo. Dark plumage with a conspicuous silvery-white rump. Spine-tipped tail. Aerial insectivore, often foraging in small flocks over forest canopy and rivers.