Cave Swiftlet vs African Palm Swift
Collocalia linchi 비교 대상 Cypsiurus parvus
Side-by-Side Comparison
| 속성 | Cave Swiftlet | African Palm Swift |
|---|---|---|
| 학명 | Collocalia linchi | Cypsiurus parvus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 18.7 cm (7.4 in) | 27.2 cm (10.7 in) |
| 체중 | 6.05 g (0.21 oz) | 14.38 g (0.51 oz) |
| 식성 | Entirely aerial diet of tiny insects and spiders; forages in large flocks over open country … | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| 산란 수 | 2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Cave Swiftlet
Soft, rapid twittering; thin 'tsit-tsit' over Javan forests; audible echolocation clicks inside caves; colonial; produces squeaky chattering at roost sites; calls weakly in flight
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Geographic Range & Migration
Cave Swiftlet
Found in Sumatra, Java, Bali, and surrounding Indonesian islands. Resident in forest, cultivated land, and villages. Nests in rock crevices.
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
Cave Swiftlet
African Palm Swift
How to Tell Them Apart
Cave Swiftlet
Tiny; dark blue-black upperparts with faint gloss; pale greyish rump band; underparts whitish with grey-buff flanks; moderately forked tail; widespread in caves across Sundaland; less glossy and less white below …
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
Cave Swiftlet
동굴칼새(Collocalia linchi)는 인도네시아와 말레이시아에 서식하는 소형 칼새입니다. 광택 있는 어두운 윗면과 연한 아랫면이 특징이며, 석회암 동굴에 둥지를 짓습니다.
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.