Southern Swift vs White-collared Swift
Chaetura meridionalis 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Southern Swift | White-collared Swift |
|---|---|---|
| 学名 | Chaetura meridionalis | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 26.3 cm (10.4 in) | 42.5 cm (16.7 in) |
| 体重 | 19.8 g (0.70 oz) | 106.45 g (3.75 oz) |
| 食性 | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 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.
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
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.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
保护状况
Southern Swift
White-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 …
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
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。
White-collared Swift
白领雨燕广泛分布于拉丁美洲山地，以白色颈环为特征的大型雨燕。