Pallid Swift vs Chimney Swift
Apus pallidus 比較対象 Chaetura pelagica
Side-by-Side Comparison
| 属性 | Pallid Swift | Chimney Swift |
|---|---|---|
| 学名 | Apus pallidus | Chaetura pelagica |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 33.4 cm (13.1 in) | 24.9 cm (9.8 in) |
| 体重 | 42.25 g (1.49 oz) | 22.666666666666668 g (0.80 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial forager on tiny insects and wind-dispersed spiders; forages near water surfaces where insects concentrate. |
| 一腹卵数 | 1-4 | 2-7 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Chimney Swift
Rapid, liquid twittering with bright cheerful quality; chi-chi-chi staccato notes carrying well across open sky at dusk.
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
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.
保全状況
Pallid Swift
Chimney Swift
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
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 …
About These Birds
Pallid Swift
カフリアマツバメは地中海沿岸やアフリカ北部に繁殖し、ヨーロッパアマツバメより淡い色合いが特徴的である。
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。