White-chested Swift vs Black Swift
Cypseloides lemosi 비교 대상 Cypseloides niger
Side-by-Side Comparison
| 속성 | White-chested Swift | Black Swift |
|---|---|---|
| 학명 | Cypseloides lemosi | Cypseloides niger |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | — | — |
| 날개 폭 | 30.0 cm (11.8 in) | 29.9 cm (11.8 in) |
| 체중 | 28.400000000000002 g (1.00 oz) | 41.55 g (1.47 oz) |
| 식성 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| 산란 수 | -- | 1 |
| 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
Black Swift
Soft, buzzy chittering 'spee-spee'; thin twittering over mountain waterfalls; higher and softer than Common Swift; small flocks call weakly over nesting cliffs
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.
Black Swift
Breeds in western North America from Alaska south to California and the Caribbean. Migrates to winter in Mexico and Central America.
보전 상태
White-chested Swift
Black 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 …
Black Swift
Entirely black with slight glossy sheen; faint pale scaling on forehead and chin in fresh plumage; broad-winged and large-bodied; slightly forked tail; sexes alike; North American cliff-nesting swift with wholly …
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.
Black Swift
15–18 cm(날개 길이 38 cm)의 대형 칼새로 전체 어두운 깃털과 약간 갈라진 꼬리를 가진다. 서부 북아메리카와 카리브 해의 해안 절벽과 폭포 뒤에서 번식한다. 산과 계곡 위 높은 곳에서 채이며 먹이를 구하는 공중 곤충식성. 남아메리카에서 월동하는 장거리 이동철새.