African Palm Swift vs Chestnut-collared Swift
Cypsiurus parvus 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | African Palm Swift | Chestnut-collared Swift |
|---|---|---|
| 学名 | Cypsiurus parvus | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 27.2 cm (10.7 in) | 26.0 cm (10.2 in) |
| 体重 | 14.38 g (0.51 oz) | 21.8 g (0.77 oz) |
| 食性 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 一腹卵数 | 1-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Palm Swift
Deep, hollow churring trill with resonant bass quality; prolonged vibrating call audible at significant range in open woodland.
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
Geographic Range & Migration
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.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保全状況
African Palm Swift
Chestnut-collared Swift
How to Tell Them Apart
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.
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
About These Birds
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.
Chestnut-collared Swift
チェストナットカラードスウィフトは中央アメリカと南アメリカ北部の山岳地帯に生息するアマツバメである。