Sooty Swift vs White-chested Swift
Cypseloides fumigatus 비교 대상 Cypseloides lemosi
Side-by-Side Comparison
| 속성 | Sooty Swift | White-chested Swift |
|---|---|---|
| 학명 | Cypseloides fumigatus | Cypseloides lemosi |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 29.0 cm (11.4 in) | 30.0 cm (11.8 in) |
| 체중 | 41.666666666666664 g (1.47 oz) | 28.400000000000002 g (1.00 oz) |
| 식성 | Catches aerial plankton — tiny midges, gnats, and ballooning spiders — continuously during soaring flight. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 산란 수 | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sooty Swift
Soft twittering 'tsit-tsit'; thin, buzzy notes in flight; calls over Neotropical waterfalls and gorges; quiet, raspy trill; rarely as vocal as larger swift species
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
Sooty Swift
Found in the Guiana Shield and Amazon Basin in Brazil, Venezuela, and the Guianas. Nomadic; associated with rocky outcrops and waterfalls.
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.
보전 상태
Sooty Swift
White-chested Swift
How to Tell Them Apart
Sooty Swift
Uniformly dark sooty-brown plumage throughout; no contrasting pale markings anywhere; slightly paler brownish-grey on throat; large and uniform; South American species whose entirely dark coloration recalls blackish swiftlets but much …
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
Sooty Swift
15–17 cm의 중형 칼새로 브라질 동남부·파라과이·아르헨티나의 아열대·산지림에 서식. 그을린 갈색 깃털. 삼림 협곡과 폭포 위를 날며 먹이를 구하는 공중 곤충식성. 폭포 뒤 젖은 암벽에 둥지를 튼다.
White-chested Swift
14–15 cm의 중형 칼새로 콜롬비아 카우카 상부 계곡 고유종. 흰 가슴 반점이 있는 그을린 흑색 깃털. 아열대림의 공중 곤충식성. 극도로 제한된 분포와 지속적인 서식지 손실로 위기종으로 분류.