African Palm Swift vs Waterfall Swift
Cypsiurus parvus 비교 대상 Hydrochous gigas
Side-by-Side Comparison
| 속성 | African Palm Swift | Waterfall Swift |
|---|---|---|
| 학명 | Cypsiurus parvus | Hydrochous gigas |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | — | — |
| 날개 폭 | 27.2 cm (10.7 in) | 29.2 cm (11.5 in) |
| 체중 | 14.38 g (0.51 oz) | 38.540000000000006 g (1.36 oz) |
| 식성 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Obligate aerial forager; feeds entirely on the wing on small flying insects, midges, and airborne … |
| 산란 수 | 1-3 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Waterfall Swift
Rapid, high-pitched twittering; sharp 'tsit-tsit' calls over Southeast Asian waterfalls; thin metallic notes; nest behind waterfalls; calls audible over roaring water
Geographic Range & Migration
African Palm Swift
Found across sub-Saharan Africa from Senegal east to Somalia and south to South Africa. Common in open areas near palms; nests in palm leaves.
Waterfall Swift
Found from southern Thailand through the Thai-Malay Peninsula to Sumatra and Borneo. Restricted to rivers near waterfalls. Scarce.
보전 상태
African Palm Swift
Waterfall Swift
How to Tell Them Apart
African Palm Swift
Slender and long-tailed; uniformly pale greyish-brown overall; underparts paler grey-buff; long deeply forked tail; pale uniform appearance with no contrasting markings; widespread African palm-nesting swift with distinctive slender silhouette.
Waterfall Swift
Blackish-brown upperparts with slight gloss; grey-brown underparts paler than back; pale grey-white chin and throat; no rump patch; robust-bodied and large; Southeast Asian waterfall specialist with uniformly dark plumage and …
About These Birds
African Palm Swift
길고 좁은 날개와 깊이 갈라진 꼬리를 가진 15–17 cm의 가는 칼새. 어두운 갈색 깃털. 사바나와 개방 삼림의 야자나무와 밀접하게 연관되어 사하라 이남 아프리카 전역에 분포. 공중 곤충식성. 아프리카에서 가장 풍부한 칼새 중 하나.
Waterfall Swift
큰폭풍칼새는 동남아시아 섬 지역에 서식하는 대형 칼새로 특히 말레이시아와 필리핀에 분포한다. 길고 뾰족한 날개와 짧은 꼬리를 가지고 있으며 빠른 속도로 하늘을 가로질러 날아다닌다. 곤충을 주식으로 하며 절벽과 동굴에 둥지를 튼다.