Pallid Swift vs Chapman's Swift
Apus pallidus 对比 Chaetura chapmani
Side-by-Side Comparison
| 属性 | Pallid Swift | Chapman's Swift |
|---|---|---|
| 学名 | Apus pallidus | Chaetura chapmani |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 33.4 cm (13.1 in) | 24.6 cm (9.7 in) |
| 体重 | 42.25 g (1.49 oz) | 23.416666666666668 g (0.83 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Obligate aerial forager; feeds entirely on the wing on small flying insects, midges, and airborne … |
| 产卵数 | 1-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Chapman's Swift
Quick, bubbling series of soft chips; pleasant liquid twittering with slightly buzzy edges, delivered during aerial display.
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Chapman's Swift
Found in Trinidad and Tobago and northern South America from Colombia and Venezuela south to northeastern Brazil. Resident in lowland forest.
保护状况
Pallid Swift
Chapman's Swift
How to Tell Them Apart
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 …
Chapman's Swift
Small; dark sooty-brown overall; rump slightly paler grey-brown than back; underparts dark brown; short spiny tail; Amazonian species intermediate in plumage between Chimney Swift and Band-rumped Swift; relatively poorly differentiated …
About These Birds
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。
Chapman's Swift
查普曼雨燕 (Chaetura chapmani)，体长约12厘米。体羽深褐黑色，腰部略浅，尾短具刺状尾羽。分布于特立尼达、委内瑞拉和巴西北部。以飞行昆虫为食，常在热带森林上空成群飞翔。