African Palm Swift vs Scarce Swift
Cypsiurus parvus 비교 대상 Schoutedenapus myoptilus
Side-by-Side Comparison
| 속성 | African Palm Swift | Scarce Swift |
|---|---|---|
| 학명 | Cypsiurus parvus | Schoutedenapus myoptilus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.2 cm (10.7 in) | 25.9 cm (10.2 in) |
| 체중 | 14.38 g (0.51 oz) | 26.916666666666668 g (0.95 oz) |
| 식성 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during 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.
Scarce Swift
High, sharp twittering; thin 'tsee-tsee' calls over African montane forest; rarely documented; calls from small flocks over mountain ridges; higher-pitched than larger African swifts
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.
Scarce Swift
Found in montane East Africa from Uganda and Kenya south to Malawi and Mozambique. Resident in mountain forests above 1,500 m. Scarce.
보전 상태
African Palm Swift
Scarce 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.
Scarce Swift
Dark sooty-brown overall; underparts paler grey-brown; pale grey-buff chin; moderately forked tail; African montane swift of the Albertine Rift; name reflects rarity in field; plumage uniformly dark with minimal pale …
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.
Scarce Swift
A medium-sized swift (17-18 cm) found in montane forests of eastern Africa, from Ethiopia to Malawi and Mozambique. Dark sooty-brown plumage. Aerial insectivore, foraging over forest canopy at 1,000-3,000 m elevation. Uncommon and poorly known.