Plain Swift vs Alpine Swift
Apus unicolor 比較対象 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Plain Swift | Alpine Swift |
|---|---|---|
| 学名 | Apus unicolor | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 29.9 cm (11.8 in) | 43.9 cm (17.3 in) |
| 体重 | 24.2 g (0.85 oz) | 97.5 g (3.44 oz) |
| 食性 | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 一腹卵数 | 2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain Swift
Harsh, grating scream with descending inflection; loud raspy calls carrying urgency, often given during colony disturbance.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Plain Swift
Breeds on the Azores, Madeira, and Canary Islands. Resident on these Macaronesian archipelagos. Closely related to Common Swift.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
保全状況
Plain Swift
Alpine Swift
How to Tell Them Apart
Plain Swift
Dark sooty-brown plumage; very faint pale chin; no distinct throat patch; entirely plain and uniform; smaller than Common Swift; Macaronesian endemic breeding in Canary Islands and Madeira; coloration slightly paler …
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
About These Birds
Plain Swift
マデイラアマツバメは大西洋の島々とアフリカ北西部に繁殖し、黒褐色の羽毛を持つアマツバメである。
Alpine Swift
アルプスアマツバメはヨーロッパの山岳地帯と岩壁に繁殖し、白い腹と大きな体が特徴的な長距離渡り鳥である。