Dark-rumped Swift vs African Swift
Apus acuticauda 비교 대상 Apus barbatus
Side-by-Side Comparison
| 속성 | Dark-rumped Swift | African Swift |
|---|---|---|
| 학명 | Apus acuticauda | Apus barbatus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Near Threatened | Least Concern |
| 체장 | — | — |
| 날개 폭 | 34.8 cm (13.7 in) | 34.2 cm (13.5 in) |
| 체중 | 37.43 g (1.32 oz) | 42.666666666666664 g (1.51 oz) |
| 식성 | Aerial insectivore feeding on swarms of small flies, winged ants, and tiny beetles during sustained … | Completely aerial diet of small flying insects and spiders; never forages on the ground or … |
| 산란 수 | 2-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Dark-rumped Swift
Thin, high twittering with silvery sheen; rapid sequence of light notes with gentle tremolo quality at dawn and dusk.
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Geographic Range & Migration
Dark-rumped Swift
Found in northeastern India (Assam) and adjacent Myanmar. Rare and poorly known; found in forested hills and river valleys at moderate elevation.
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
Dark-rumped Swift
African Swift
How to Tell Them Apart
Dark-rumped Swift
Dark sooty-brown throughout with dark rump concolorous with back; no contrasting white rump patch; pale white throat; underparts dark brown; Himalayan endemic cliff-nester; dark rump contrasting with white-rumped relatives is …
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
Dark-rumped Swift
날카로운 꼬리 칼새는 인도 북동부와 미얀마, 방글라데시에 서식하는 희귀한 칼새입니다. V자 형태로 갈라진 꼬리와 전체적으로 어두운 깃털이 특징이며, 산악 지형에서 서식합니다.
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.