Chimney Swift vs Black Spinetail
Chaetura pelagica 对比 Telacanthura melanopygia
Side-by-Side Comparison
| 属性 | Chimney Swift | Black Spinetail |
|---|---|---|
| 学名 | Chaetura pelagica | Telacanthura melanopygia |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 24.9 cm (9.8 in) | 32.4 cm (12.8 in) |
| 体重 | 22.666666666666668 g (0.80 oz) | 52.0 g (1.83 oz) |
| 食性 | Aerial forager on tiny insects and wind-dispersed spiders; forages near water surfaces where insects concentrate. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 产卵数 | 2-7 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chimney Swift
Rapid, liquid twittering with bright cheerful quality; chi-chi-chi staccato notes carrying well across open sky at dusk.
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Chimney Swift
Breeds in eastern North America from Canada south to Texas. Long-distance migrant wintering in the upper Amazon basin of Peru and Brazil.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
保护状况
Chimney Swift
Black Spinetail
How to Tell Them Apart
Chimney Swift
Small; uniformly dark sooty-grey overall with slightly paler grey throat and chin; no contrasting rump patch; short spiny tail; sexes identical; North American chimney-nesting species famous for its swirling pre-roost …
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
Chimney Swift
烟囱雨燕（约25克）几乎将整个生命都在空中度过，仅在繁殖时着地。繁殖于北美东部，越冬于南美洲。以空中飞虫为食。历史上在烟囱和空心树中筑巢。无危；但因烟囱封堵及昆虫减少，数量明显下降。
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.