African Swift vs Vaux's Swift
Apus barbatus 비교 대상 Chaetura vauxi
Side-by-Side Comparison
| 속성 | African Swift | Vaux's Swift |
|---|---|---|
| 학명 | Apus barbatus | Chaetura vauxi |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 34.2 cm (13.5 in) | 22.3 cm (8.8 in) |
| 체중 | 42.666666666666664 g (1.51 oz) | 18.033333333333335 g (0.64 oz) |
| 식성 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. |
| 산란 수 | 1-2 | 1-7 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Vaux's Swift
Soft, high sibilant whisper followed by ticking notes; delicate trill barely audible beyond immediate roosting vicinity.
Geographic Range & Migration
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.
Vaux's Swift
Breeds in western North America from Alaska south to Central America. Migrates to winter in Venezuela and northwestern South America.
보전 상태
African Swift
Vaux's Swift
How to Tell Them Apart
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.
Vaux's Swift
Small; dark sooty-brown upperparts; pale grey rump slightly paler than back; underparts pale greyish-brown; short spiny tail; smaller and paler-bellied than Chimney Swift; Pacific coast North American species with subtly …
About These Birds
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.
Vaux's Swift
알래스카에서 중앙아메리카까지 북미 서부에 서식하는 소형 칼새 (11–12 cm). 어두운 갈-검은색 깃털에 더 연한 목. 공중 곤충 섭취; 계절 이동.