African Palm Swift vs Pygmy Palm Swift
Cypsiurus parvus 비교 대상 Tachornis furcata
Side-by-Side Comparison
| 속성 | African Palm Swift | Pygmy Palm Swift |
|---|---|---|
| 학명 | Cypsiurus parvus | Tachornis furcata |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.2 cm (10.7 in) | 17.8 cm (7.0 in) |
| 체중 | 14.38 g (0.51 oz) | 6.75 g (0.24 oz) |
| 식성 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Aerial-only diet of small flying insects, winged termites, and drifting spiders caught during continuous flight. |
| 산란 수 | 1-3 | -- |
| 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.
Pygmy Palm Swift
Tiny, buzzy chips barely audible beyond two metres; minute high-pitched twittering almost disappearing in ambient sound.
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.
Pygmy Palm Swift
Found in Venezuela and adjacent Colombia and Guyana. Resident in lowland savanna near Moriche palms; nests inside palm fronds. Uncommon.
보전 상태
African Palm Swift
Pygmy Palm 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.
Pygmy Palm Swift
Tiny, among the world's smallest swifts; dark brown-black overall; pale buff-white rump patch; underparts pale whitish with dark sides; deeply forked tail; Venezuelan and Colombian palm-nesting species; minute size 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.
Pygmy Palm Swift
A tiny swift (9-10 cm) of open savannas and palm groves in Colombia and Venezuela. Dark plumage with a pale rump. Long, forked tail. Aerial insectivore associated with Moriche palms (Mauritia flexuosa), nesting inside palm fronds. One of the smallest swifts.