White-tipped Swift vs Pallid Swift
Aeronautes montivagus 对比 Apus pallidus
Side-by-Side Comparison
| 属性 | White-tipped Swift | Pallid Swift |
|---|---|---|
| 学名 | Aeronautes montivagus | Apus pallidus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.0 cm (9.1 in) | 33.4 cm (13.1 in) |
| 体重 | 20.21666666666667 g (0.71 oz) | 42.25 g (1.49 oz) |
| 食性 | Obligate aerial feeder on small insects and arachnids; catches prey in a wide gape during … | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| 产卵数 | 4-5 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-tipped Swift
High, pure whistle fading to sibilant ending; soft series of descending notes with slight wavering, rarely heard distinctly.
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Geographic Range & Migration
White-tipped Swift
Found in the Andes and tepuis of Venezuela, Colombia, Ecuador, Peru, and Bolivia at 500–3,000 m. Resident in montane rocky outcrops.
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
保护状况
White-tipped Swift
Pallid Swift
How to Tell Them Apart
White-tipped Swift
Dark blackish-brown; white throat and pale flanks; white tips to secondaries forming a white trailing-edge band on wing; smaller than White-throated Swift; Andean species distinguished by white-tipped secondary pattern.
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
About These Birds
White-tipped Swift
一种中型雨燕（体长13-14厘米），分布于从墨西哥至委内瑞拉和秘鲁的山地地区。体羽深色。属雨燕科（Apodidae），在中美洲和南美洲北部山区的悬崖上繁殖。
Pallid Swift
淡色雨燕在地中海沿岸和北非繁殖，颜色比普通雨燕更淡。