White-chested Swift vs Rothschild's Swift
Cypseloides lemosi 비교 대상 Cypseloides rothschildi
Side-by-Side Comparison
| 속성 | White-chested Swift | Rothschild's Swift |
|---|---|---|
| 학명 | Cypseloides lemosi | Cypseloides rothschildi |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 30.0 cm (11.8 in) | 30.6 cm (12.0 in) |
| 체중 | 28.400000000000002 g (1.00 oz) | 43.0 g (1.52 oz) |
| 식성 | 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 … |
| 산란 수 | -- | -- |
| 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
Rothschild's Swift
Thin, buzzy twittering in flight; soft 'tsee-tsee' contact notes; calls over Andean waterfalls; quiet and unobtrusive vocally; high-pitched but weak; rarely heard
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.
Rothschild's Swift
Found in the Andes of northwestern Argentina and adjacent Bolivia at 1,500–3,000 m. Very poorly known; nests near waterfalls in humid forest.
보전 상태
White-chested Swift
Rothschild's 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 …
Rothschild's Swift
Blackish-brown overall with subtle pale scaling on throat and forehead; underparts slightly paler brownish; no contrasting white markings; robust-bodied Andean swift distinguished from Sooty Swift by faint pale throat scaling.
About These Birds
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.
Rothschild's Swift
15–16 cm의 중형 칼새로 아르헨티나 북서부·볼리비아 남부의 1,000–3,000m 고도 산지림에 서식. 어두운 그을린 깃털. 삼림 계곡 위를 날며 먹이를 구하는 공중 곤충식성. 폭포 뒤에 둥지를 튼다. 드물고 국지적; 월터 로스차일드의 이름을 따서 명명.