African Palm Swift vs White-naped Swift
Cypsiurus parvus 比較対象 Streptoprocne semicollaris
Side-by-Side Comparison
| 属性 | African Palm Swift | White-naped Swift |
|---|---|---|
| 学名 | Cypsiurus parvus | Streptoprocne semicollaris |
| 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) | 44.4 cm (17.5 in) |
| 体重 | 14.38 g (0.51 oz) | 175.0 g (6.17 oz) |
| 食性 | Exclusively aerial diet; consumes tiny flying insects and spiders, sometimes following insect swarms for km. | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. |
| 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.
White-naped Swift
Very loud screaming trill; deep, powerful 'shreee' from Mexico's largest swift; calls over cliffs and canyons; impressive volume; deeper than White-collared Swift
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.
White-naped Swift
Endemic to Mexico from Nayarit south to Oaxaca. Found in montane forest and canyons at 1,000–3,000 m. Nests behind waterfalls.
保全状況
African Palm Swift
White-naped 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.
White-naped Swift
Very large; entirely black with white patch restricted to nape only, not forming a full collar; large square tail; Mexican endemic and the largest swift in Middle America; white nape …
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.
White-naped Swift
ホワイトナペドスウィフトはメキシコの山岳地帯に生息し、首の白い帯が特徴的なアマツバメである。