Sooty Swift vs African Palm Swift
Cypseloides fumigatus 对比 Cypsiurus parvus
Side-by-Side Comparison
| 属性 | Sooty Swift | African Palm Swift |
|---|---|---|
| 学名 | Cypseloides fumigatus | Cypsiurus parvus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 29.0 cm (11.4 in) | 27.2 cm (10.7 in) |
| 体重 | 41.666666666666664 g (1.47 oz) | 14.38 g (0.51 oz) |
| 食性 | Catches aerial plankton — tiny midges, gnats, and ballooning spiders — continuously during soaring flight. | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. |
| 产卵数 | 1 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sooty Swift
Soft twittering 'tsit-tsit'; thin, buzzy notes in flight; calls over Neotropical waterfalls and gorges; quiet, raspy trill; rarely as vocal as larger swift species
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Geographic Range & Migration
Sooty Swift
Found in the Guiana Shield and Amazon Basin in Brazil, Venezuela, and the Guianas. Nomadic; associated with rocky outcrops and waterfalls.
African Palm Swift
Found across sub-Saharan Africa from Senegal east to Somalia and south to South Africa. Common in open areas near palms; nests in palm leaves.
保护状况
Sooty Swift
African Palm Swift
How to Tell Them Apart
Sooty Swift
Uniformly dark sooty-brown plumage throughout; no contrasting pale markings anywhere; slightly paler brownish-grey on throat; large and uniform; South American species whose entirely dark coloration recalls blackish swiftlets but much …
African Palm Swift
Slender and long-tailed; uniformly pale greyish-brown overall; underparts paler grey-buff; long deeply forked tail; pale uniform appearance with no contrasting markings; widespread African palm-nesting swift with distinctive slender silhouette.
About These Birds
Sooty Swift
烟色雨燕栖息于南美洲热带地区，具有煤烟色暗色羽毛。
African Palm Swift
A slender swift (15-17 cm) with long, narrow wings and a deeply forked tail. Dark brown plumage. Found across sub-Saharan Africa in savanna and open woodland, closely associated with palm trees. Aerial insectivore. One of Africa's most abundant swift species.