Chimney Swift vs Black Spinetail
Chaetura pelagica 比較対象 Telacanthura melanopygia
Side-by-Side Comparison
| 属性 | Chimney Swift | Black Spinetail |
|---|---|---|
| 学名 | Chaetura pelagica | Telacanthura melanopygia |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 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. |
| 一腹卵数 | 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.
保全状況
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
北米東部で繁殖し、南米北部で越冬する小型の鳥（体長12〜15cm）。細長い体と鎌型の翼が特徴で、食事・交尾・巣材集め以外はほぼ常に空中を飛び続ける。Chaetura pelagica（アマツバメ）は都市の煙突や中空の木を集団で営巣場所として利用する。「空飛ぶ葉巻」の愛称がある。Apodidae科。
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.