Plain Swift vs White-chested Swift
Apus unicolor 비교 대상 Cypseloides lemosi
Side-by-Side Comparison
| 속성 | Plain Swift | White-chested Swift |
|---|---|---|
| 학명 | Apus unicolor | Cypseloides lemosi |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 29.9 cm (11.8 in) | 30.0 cm (11.8 in) |
| 체중 | 24.2 g (0.85 oz) | 28.400000000000002 g (1.00 oz) |
| 식성 | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| 산란 수 | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain Swift
Harsh, grating scream with descending inflection; loud raspy calls carrying urgency, often given during colony disturbance.
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
Plain Swift
Breeds on the Azores, Madeira, and Canary Islands. Resident on these Macaronesian archipelagos. Closely related to Common Swift.
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
Plain Swift
White-chested Swift
How to Tell Them Apart
Plain Swift
Dark sooty-brown plumage; very faint pale chin; no distinct throat patch; entirely plain and uniform; smaller than Common Swift; Macaronesian endemic breeding in Canary Islands and Madeira; coloration slightly paler …
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
Plain Swift
단색 칼새는 카나리아 제도, 마데이라, 아조레스에 서식하는 칼새입니다. 이름과 같이 전체적으로 단조로운 검은 갈색 깃털을 가지고 있으며, 절벽과 건물에서 집을 짓습니다.
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.