African Palm Swift vs Sabine's Spinetail
Cypsiurus parvus 비교 대상 Rhaphidura sabini
Side-by-Side Comparison
| 속성 | African Palm Swift | Sabine's Spinetail |
|---|---|---|
| 학명 | Cypsiurus parvus | Rhaphidura sabini |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.2 cm (10.7 in) | 24.7 cm (9.7 in) |
| 체중 | 14.38 g (0.51 oz) | 17.75 g (0.63 oz) |
| 식성 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. |
| 산란 수 | 1-3 | 2-3 |
| 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.
Sabine's Spinetail
Faint, needle-thin whistle tapering at the end; soft twittering interspersed with clicking flight notes, barely audible.
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.
Sabine's Spinetail
Found in West and Central Africa from Sierra Leone east to the DRC and Uganda. Resident in lowland rainforest and forest edge.
보전 상태
African Palm Swift
Sabine's Spinetail
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.
Sabine's Spinetail
Small; dark blackish-brown upperparts; white rump patch; underparts pale grey-white; short spiny tail; West African rainforest species; closely resembles Silver-rumped Spinetail but purer white rump with less silvery sheen.
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.
Sabine's Spinetail
A small spinetail swift (11-12 cm) of lowland forests across West and Central Africa. Dark plumage with a white rump patch. Spine-tipped tail. Aerial insectivore, often seen foraging over forest canopy in mixed-species swift flocks. Nests in hollow trees.