White-throated Swift vs White-collared Swift
Aeronautes saxatalis 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | White-throated Swift | White-collared Swift |
|---|---|---|
| 学名 | Aeronautes saxatalis | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 28.1 cm (11.1 in) | 42.5 cm (16.7 in) |
| 体重 | 34.03 g (1.20 oz) | 106.45 g (3.75 oz) |
| 食性 | Aerial insectivore relying entirely on flying insects (midges, gnats, small beetles) and airborne spiders. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 产卵数 | 3-6 | 2 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
无
White-throated Swift only
White-collared Swift only
Song & Call Comparison
White-throated Swift
Sharp, whistled notes alternating with buzzy trills; crisp di-di-dit pattern repeated rhythmically during swift soaring flights.
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
White-throated Swift
Found in western North America from British Columbia south through the Rocky Mountains to Central America. Partially migratory northward.
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
White-throated Swift
White-collared Swift
How to Tell Them Apart
White-throated Swift
Black upperparts; bold white throat and white flanks extending to white central underparts; black sides of breast and belly create striking tricoloured pattern; white lateral tail spots; Western North American …
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
White-throated Swift
一种中型雨燕（体长15-17厘米），体羽黑白相间，是北美雨燕中独具一格的物种。属雨燕科（Apodidae），分布于北美西部山地，被称为"白腰雨燕"，在悬崖峭壁上繁殖。
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。