African Palm Swift vs White-naped Swift
Cypsiurus parvus เปรียบเทียบกับ Streptoprocne semicollaris
Side-by-Side Comparison
| คุณสมบัติ | African Palm Swift | White-naped Swift |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Cypsiurus parvus | Streptoprocne semicollaris |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 27.2 cm (10.7 in) | 44.4 cm (17.5 in) |
| น้ำหนัก | 14.38 g (0.51 oz) | 175.0 g (6.17 oz) |
| อาหาร | 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. |
| จำนวนไข่ | 1-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
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African Palm Swift only
White-naped Swift only
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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.
สถานะการอนุรักษ์
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
A large swift (20-22 cm) endemic to Mexico, found in montane regions from Nayarit to Guerrero. Dark plumage with a white half-collar on the nape. Aerial insectivore, foraging over pine-oak forests and barrancas. Nests in large cave colonies. Near Threatened due to limited range.