Cape Verde Swift vs African Swift
Apus alexandri 비교 대상 Apus barbatus
Side-by-Side Comparison
| 속성 | Cape Verde Swift | African Swift |
|---|---|---|
| 학명 | Apus alexandri | Apus barbatus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.5 cm (10.8 in) | 34.2 cm (13.5 in) |
| 체중 | 39.4 g (1.39 oz) | 42.666666666666664 g (1.51 oz) |
| 식성 | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 산란 수 | 2 | 1-2 |
| Population Trend | — | — |
Song & Call Comparison
Cape Verde Swift
Soft, musical whistling with smooth melodic quality; clear, unhurried phrases rising and falling gently in warm afternoon air.
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Cape Verde Swift
Endemic to the Cape Verde Islands in the eastern Atlantic. Resident on several islands including São Vicente and Santo Antão.
African Swift
Found across sub-Saharan Africa from Senegal east to Ethiopia and south to South Africa. One of Africa's most common swift species.
보전 상태
Cape Verde Swift
African Swift
How to Tell Them Apart
Cape Verde Swift
Dark sooty-brown overall; pale grey-white throat patch; underparts slightly paler brown; moderately forked tail; Cape Verde Islands endemic; similar to Common Swift but slightly smaller with more extensive pale throat …
African Swift
Dark sooty-brown throughout; pale throat patch whitish-grey; underparts slightly paler; broadly similar to Common Swift but slightly larger and marginally paler below; widespread Sub-Saharan African species.
About These Birds
Cape Verde Swift
알렉산더 칼새는 카보베르데 제도에만 서식하는 소형 칼새입니다. 집 칼새와 유사하지만 유전적으로 구별되는 고유종으로, 섬 절벽과 건물에서 번식합니다.
African Swift
아프리카 칼새는 사하라 이남 아프리카 전역에 분포하는 중간 크기의 칼새입니다. 검은 깃털과 흰 목이 특징이며, 절벽과 건물에서 집을 짓고 높은 곳에서 날아오르며 먹이를 잡습니다.