Spot-fronted Swift vs African Palm Swift
Cypseloides cherriei 비교 대상 Cypsiurus parvus
Side-by-Side Comparison
| 속성 | Spot-fronted Swift | African Palm Swift |
|---|---|---|
| 학명 | Cypseloides cherriei | Cypsiurus parvus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 25.0 cm (9.8 in) | 27.2 cm (10.7 in) |
| 체중 | 22.725 g (0.80 oz) | 14.38 g (0.51 oz) |
| 식성 | Feeds aerially on tiny insects and spiders, often following weather fronts where aerial plankton concentrates. | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| 산란 수 | 1 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Spot-fronted Swift
Soft 'chip-chip' notes; thin, quiet twittering in flight; calls over Colombian waterfalls and mountain streams; high-pitched weak trills; rarely vocal away from breeding
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Geographic Range & Migration
Spot-fronted Swift
Found in disjunct montane populations from Costa Rica and Venezuela south to Ecuador. Rare; associated with waterfalls at 600–2,000 m elevation.
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.
보전 상태
Spot-fronted Swift
African Palm Swift
How to Tell Them Apart
Spot-fronted Swift
Sooty-black overall with distinctive white-spotted forehead; throat shows pale grey-white scaling; no other markings; dark uniform body contrasts with the unique white-spotted loral and frontal spots that name the species.
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.
About These Birds
Spot-fronted Swift
13–14 cm의 중형 어두운 칼새로 코스타리카·서부 파나마의 산지림에 서식. 흰 눈 앞 반점이 있는 그을린 흑색 깃털. 삼림 계곡과 산등성이 위 높은 곳에서 채이며 먹이를 구하는 공중 곤충식성. 희귀하고 잘 알려지지 않음; 준위협으로 분류.
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.