Southern Swift vs Alpine Swift
Chaetura meridionalis 比較対象 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Southern Swift | Alpine Swift |
|---|---|---|
| 学名 | Chaetura meridionalis | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 26.3 cm (10.4 in) | 43.9 cm (17.3 in) |
| 体重 | 19.8 g (0.70 oz) | 97.5 g (3.44 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 一腹卵数 | 3-5 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Southern Swift
Faint, thin squealing trill; rapid metallic chips cascading high-pitched over coastal forest, almost ventriloquial in quality.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Southern Swift
Found in southern South America from Brazil to Argentina. Migratory, moving north to Amazonia during the austral winter. Open areas and forest.
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
Southern Swift
Alpine Swift
How to Tell Them Apart
Southern Swift
Small; dark sooty-brown overall; pale grey rump band moderately contrasting with dark back; underparts dark grey-brown; short spiny tail; southern South American migratory species; closely resembles Ashy-tailed Swift but rump …
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
Southern Swift
ブラジルからアルゼンチンの南アメリカ南東部に生息する小型アマツバメ（11〜12 cm）。暗い灰褐色の羽衣。棘状の尾。空中昆虫食性。南部で繁殖し北部へ移動する長距離渡り鳥。
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。