Southern Swift vs Chestnut-collared Swift
Chaetura meridionalis 对比 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 |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 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 … |
| 产卵数 | 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.
保护状况
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
南方雨燕 (Chaetura meridionalis)，体长约12厘米。体羽深褐色，腰部灰褐色，喉淡色，尾短而刚硬。分布于南美洲中南部，包括巴西中部和阿根廷北部。在空中觅食昆虫，常成大群迁徙。
Chestnut-collared Swift
栗领雨燕栖息于中美洲和南美洲北部的山地。