Pallid Swift vs Silver-backed Needletail
Apus pallidus 比較対象 Hirundapus cochinchinensis
Side-by-Side Comparison
| 属性 | Pallid Swift | Silver-backed Needletail |
|---|---|---|
| 学名 | Apus pallidus | Hirundapus cochinchinensis |
| 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) | 36.6 cm (14.4 in) |
| 体重 | 42.25 g (1.49 oz) | 85.97999999999999 g (3.03 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … |
| 一腹卵数 | 1-4 | -- |
| Population Trend | — | — |
Habitat Comparison
共通生息地
None
Pallid Swift only
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Silver-backed Needletail
Dry, rattling trill with softer ending; rapid series of clipped notes dropping slightly in pitch as the bird gains speed.
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.
Silver-backed Needletail
Found from northeastern India and China through Southeast Asia to the Greater Sundas. Partially migratory; winters south in forest and open areas.
保全状況
Pallid Swift
Silver-backed 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 …
Silver-backed Needletail
Large; blackish-brown body; distinctive large silvery-white back patch between wings; white throat and undertail coverts; short spiny tail; Southeast Asian species closely resembling White-throated Needletail but silvery-white saddle more extensive.
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。
Silver-backed Needletail
シロテハリオアマツバメ（Hirundapus cochinchinensis）はインド・東南アジア・中国南部の低地・丘陵林に生息す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。開けた空間で昆虫を捕食。