White-chinned Swift vs Black Spinetail
Cypseloides cryptus 비교 대상 Telacanthura melanopygia
Side-by-Side Comparison
| 속성 | White-chinned Swift | Black Spinetail |
|---|---|---|
| 학명 | Cypseloides cryptus | Telacanthura melanopygia |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 27.4 cm (10.8 in) | 32.4 cm (12.8 in) |
| 체중 | 35.95 g (1.27 oz) | 52.0 g (1.83 oz) |
| 식성 | Aerial-only diet of small flying insects, winged termites, and drifting spiders caught during continuous flight. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 산란 수 | 1 | -- |
| 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
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
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.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
보전 상태
White-chinned Swift
Black Spinetail
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 …
Black Spinetail
Large; entirely black plumage with slight gloss; black rump unlike white-rumped congeners; underparts dark; spiny tail; West African forest species; all-black coloration with no contrasting markings distinguishes it from all …
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.
Black Spinetail
A medium-sized spinetail swift (14-15 cm) of lowland rainforests in West and Central Africa. All-dark plumage. Spine-tipped tail for bracing against tree trunks. Aerial insectivore, foraging above the forest canopy. Nests inside hollow trees. Uncommon and seldom observed.