White-throated Swift vs Chestnut-collared Swift
Aeronautes saxatalis 对比 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | White-throated Swift | Chestnut-collared Swift |
|---|---|---|
| 学名 | Aeronautes saxatalis | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 28.1 cm (11.1 in) | 26.0 cm (10.2 in) |
| 体重 | 34.03 g (1.20 oz) | 21.8 g (0.77 oz) |
| 食性 | Aerial insectivore relying entirely on flying insects (midges, gnats, small beetles) and airborne spiders. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 产卵数 | 3-6 | 2 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
无
White-throated Swift only
Chestnut-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.
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
White-throated Swift
Found in western North America from British Columbia south through the Rocky Mountains to Central America. Partially migratory northward.
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
White-throated Swift
Chestnut-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 …
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
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。
Chestnut-collared Swift
栗领雨燕栖息于中美洲和南美洲北部的山地。