Pallid Swift vs White-throated Needletail
Apus pallidus 比較対象 Hirundapus caudacutus
Side-by-Side Comparison
| 属性 | Pallid Swift | White-throated Needletail |
|---|---|---|
| 学名 | Apus pallidus | Hirundapus caudacutus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 33.4 cm (13.1 in) | 41.2 cm (16.2 in) |
| 体重 | 42.25 g (1.49 oz) | 101.475 g (3.58 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 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.
White-throated Needletail
Powerful, loud churring rattle descending in pitch; deep resonant trill audible from great distance, forceful and sustained.
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.
White-throated Needletail
Breeds in Siberia, China, Japan, and the Himalayas. Long-distance migrant wintering in Australasia and Southeast Asia. Breeds in forests and cliffs.
保全状況
Pallid Swift
White-throated Needletail
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 …
White-throated Needletail
Large; dark blackish-brown upperparts with metallic green gloss; white throat and undertail coverts; pale white back saddle between wings; short spiny tail; one of the world's fastest birds; white throat …
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。
White-throated Needletail
シロハラハリオアマツバメ（Hirundapus caudacutus）はアジアで繁殖しオーストラリア・ニュージーランドに渡る大型のアマツバメ（体長18〜20 cm）。暗い羽衣と白い喉・腰・腹が特徴。飛行中に昆虫を捕らえ、時速170 kmを超える速さで知られる世界最速の鳥の一つ。