African Palm Swift vs Biscutate Swift
Cypsiurus parvus 比較対象 Streptoprocne biscutata
Side-by-Side Comparison
| 属性 | African Palm Swift | Biscutate Swift |
|---|---|---|
| 学名 | Cypsiurus parvus | Streptoprocne biscutata |
| 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) | 38.4 cm (15.1 in) |
| 体重 | 14.38 g (0.51 oz) | 106.67999999999999 g (3.76 oz) |
| 食性 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Aerial forager on tiny insects and wind-dispersed spiders; forages near water surfaces where insects concentrate. |
| 一腹卵数 | 1-3 | 1-4 |
| 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.
Biscutate Swift
Loud, screeching trill; powerful 'schreeee' calls; similar to White-collared Swift but slightly lower; calls in large flocks over Brazilian mountains and waterfalls
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.
Biscutate Swift
Found in Brazil, Bolivia, and Paraguay in eastern South America. Resident in forest and open terrain; nests on rock faces.
保全状況
African Palm Swift
Biscutate 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.
Biscutate Swift
Large; blackish-brown with white collar interrupted at centre of nape creating two white patches rather than a complete ring; South American species readily distinguished from White-collared Swift by broken collar …
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.
Biscutate Swift
ビスカテードスウィフトはブラジル東部の山岳地帯に生息し、独特の二枚の白い盾状紋が特徴的なアマツバメである。