White-chinned Swift vs Black Spinetail
Cypseloides cryptus เปรียบเทียบกับ Telacanthura melanopygia
Side-by-Side Comparison
| คุณสมบัติ | White-chinned Swift | Black Spinetail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Cypseloides cryptus | Telacanthura melanopygia |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 27.4 cm (10.8 in) | 32.4 cm (12.8 in) |
| น้ำหนัก | 35.95 g (1.27 oz) | 52.0 g (1.83 oz) |
| อาหาร | 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. |
| จำนวนไข่ | 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.
สถานะการอนุรักษ์
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
A medium-sized swift (14-15 cm) of humid lowland and foothill forests from southern Mexico to Peru. Dark sooty-brown plumage with a small white chin patch. Aerial insectivore, feeding over forest canopy and ravines. Nests behind waterfalls. Uncommon and poorly studied.
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.