Lesser Antillean Swift vs Great Dusky Swift
Chaetura martinica 对比 Cypseloides senex
Side-by-Side Comparison
| 属性 | Lesser Antillean Swift | Great Dusky Swift |
|---|---|---|
| 学名 | Chaetura martinica | Cypseloides senex |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 21.6 cm (8.5 in) | 33.8 cm (13.3 in) |
| 体重 | 12.6 g (0.44 oz) | 83.0 g (2.93 oz) |
| 食性 | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … |
| 产卵数 | 3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Lesser Antillean Swift
Sharp, high-pitched squeaking in rapid succession; excited twittering with melodic inflection rising near breeding colony.
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
Lesser Antillean Swift
Found in the Lesser Antilles from Guadeloupe and Dominica south to St. Vincent and Grenada. Resident in forest and open areas.
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
Lesser Antillean Swift
Great Dusky Swift
How to Tell Them Apart
Lesser Antillean Swift
Small; dark sooty-brown overall; pale grey-brown rump slightly paler than back; underparts grey-brown; short spiny tail; Lesser Antilles endemic; very similar to Chapman's Swift but smaller and island-restricted with subtly …
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
Lesser Antillean Swift
小安的列斯雨燕 (Chaetura martinica)，体长约11厘米。体羽黑褐色，腰部略浅，喉部浅色，尾短。特有于加勒比海小安的列斯群岛，包括马提尼克和圣卢西亚等岛屿。以飞行昆虫为食。
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。