Madagascar Swift vs Great Dusky Swift
Apus balstoni 对比 Cypseloides senex
Side-by-Side Comparison
| 属性 | Madagascar Swift | Great Dusky Swift |
|---|---|---|
| 学名 | Apus balstoni | Cypseloides senex |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 32.2 cm (12.7 in) | 33.8 cm (13.3 in) |
| 体重 | 46.125 g (1.63 oz) | 83.0 g (2.93 oz) |
| 食性 | Feeds exclusively on aerial plankton — tiny flies, aphids, and spiders — captured in continuous … | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Madagascar Swift
Soft twittering with delicate clicking elements; light, airy notes tumbling quickly in loose sequence near water sources.
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
Madagascar Swift
Found in Madagascar and the Comoro Islands. Resident in open habitats including savanna, coastal areas, and highland grassland.
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
Madagascar Swift
Great Dusky Swift
How to Tell Them Apart
Madagascar Swift
Dark sooty-brown overall; pale whitish throat patch; underparts slightly paler brown; moderately forked tail; Malagasy endemic; one of the heavier island Apus swifts; closely resembles African Swift but restricted to …
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
Madagascar Swift
马达加斯加雨燕分布于马达加斯加和科摩罗群岛，是已知的岛屿特有雨燕。
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。