Southern Swift vs Chestnut-collared Swift
Chaetura meridionalis 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Southern Swift | Chestnut-collared Swift |
|---|---|---|
| 学名 | Chaetura meridionalis | Streptoprocne rutila |
| 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) | 26.0 cm (10.2 in) |
| 体重 | 19.8 g (0.70 oz) | 21.8 g (0.77 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 一腹卵数 | 3-5 | 2 |
| 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.
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
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.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保全状況
Southern Swift
Chestnut-collared 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 …
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
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。
Chestnut-collared Swift
チェストナットカラードスウィフトは中央アメリカと南アメリカ北部の山岳地帯に生息するアマツバメである。