Andean Swift vs Great Dusky Swift
Aeronautes andecolus 对比 Cypseloides senex
Side-by-Side Comparison
| 属性 | Andean Swift | Great Dusky Swift |
|---|---|---|
| 学名 | Aeronautes andecolus | Cypseloides senex |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 28.0 cm (11.0 in) | 33.8 cm (13.3 in) |
| 体重 | 17.1 g (0.60 oz) | 83.0 g (2.93 oz) |
| 食性 | Entirely aerial insectivore consuming swarms of tiny flies, winged ants, and ballooning spiders on the … | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … |
| 产卵数 | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Andean Swift
Melodic whistled phrase with clear flute-like quality; gentle ascending series of pure notes echoing across high Andean slopes.
Great Dusky Swift
Loud, churring trill; harsher and louder than other Cypseloides; calls over Iguacu Falls and major Neotropical waterfalls; buzzy 'bzzzt-bzzzt' in aerial groups
Geographic Range & Migration
Andean Swift
Found along the Andes from Peru and Bolivia south to Chile and Argentina at 2,000–4,500 m. Resident in Andean valleys and rocky slopes.
Great Dusky Swift
Found in eastern South America from Venezuela and the Guianas south to Bolivia and Paraguay. Resident near rocky cliffs and waterfalls.
保护状况
Andean Swift
Great Dusky Swift
How to Tell Them Apart
Andean Swift
Dark blackish-brown upperparts; white throat and white flanks; slightly less bold white patterning than White-throated Swift; Andean high-altitude specialist ranging Peru to Argentina; similar plumage to congeners but geographically separated.
Great Dusky Swift
Very large; entirely dark sooty-brown with pale grey forehead and chin scaling; slightly paler underparts; broad wings; largest Cypseloides swift; South American waterfall specialist with dusky uniform plumage and imposing …
About These Birds
Andean Swift
一种中型雨燕（体长14-16厘米），分布于秘鲁至阿根廷的高安第斯山区，通常出现在海拔2,500至4,500米地带。属雨燕科（Apodidae），是南美洲安第斯高原特有的雨燕。
Great Dusky Swift
大暗色雨燕分布于巴西和阿根廷，在大型瀑布附近繁殖的雨燕。