White-chinned Swift vs African Palm Swift
Cypseloides cryptus 비교 대상 Cypsiurus parvus
Side-by-Side Comparison
| 속성 | White-chinned Swift | African Palm Swift |
|---|---|---|
| 학명 | Cypseloides cryptus | Cypsiurus parvus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.4 cm (10.8 in) | 27.2 cm (10.7 in) |
| 체중 | 35.95 g (1.27 oz) | 14.38 g (0.51 oz) |
| 식성 | Aerial-only diet of small flying insects, winged termites, and drifting spiders caught during continuous flight. | 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
White-chinned Swift
Soft, buzzy twittering; weak 'tsit-tsit' in flight; calls over Neotropical waterfalls; thin, high-pitched contact notes; soft compared to most swifts; rarely vocal
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Geographic Range & Migration
White-chinned Swift
Found from southern Mexico south through Central America and northwestern South America to Bolivia. Nomadic; joins large mixed swift flocks.
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
White-chinned Swift
African Palm Swift
How to Tell Them Apart
White-chinned Swift
Uniformly sooty-black plumage with narrow white chin spot; no white rump or other pale markings; large for a Cypseloides; cryptic appearance made identification historically difficult; white chin the sole distinguishing …
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
White-chinned Swift
14–15 cm의 중형 칼새로 멕시코 남부에서 페루까지 습윤한 저지·산기슭 삼림에 서식. 작은 흰 턱 반점이 있는 어두운 그을린 갈색 깃털. 삼림 수관부와 계곡 위를 날며 먹이를 구하는 공중 곤충식성. 폭포 뒤에 둥지를 튼다. 드물고 연구가 부족하다.
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.