Nyanza Swift vs Pallid Swift
Apus niansae เปรียบเทียบกับ Apus pallidus
Side-by-Side Comparison
| คุณสมบัติ | Nyanza Swift | Pallid Swift |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Apus niansae | Apus pallidus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 31.0 cm (12.2 in) | 33.4 cm (13.1 in) |
| น้ำหนัก | 32.4 g (1.14 oz) | 42.25 g (1.49 oz) |
| อาหาร | Obligate aerial forager; feeds entirely on the wing on small flying insects, midges, and airborne … | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| จำนวนไข่ | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Nyanza Swift
High, thin sibilant trill with insect-like quality; barely perceptible rapid modulation of a single high-pitched note.
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Geographic Range & Migration
Nyanza Swift
Found in East Africa from Ethiopia and Sudan south to Uganda and Kenya. Resident or intra-African migrant in open savanna near Lake Victoria.
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
สถานะการอนุรักษ์
Nyanza Swift
Pallid Swift
How to Tell Them Apart
Nyanza Swift
Dark sooty-brown overall; pale whitish chin and throat patch; underparts slightly paler brown; moderately forked tail; East African species similar to Common Swift but slightly paler below with a subtly …
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
About These Birds
Nyanza Swift
A medium-sized swift (14-15 cm) found in highland areas of East Africa from Sudan to Tanzania. Dark plumage with a white belly patch. Aerial insectivore. Often seen in mixed flocks with other swift species over montane grassland. Sometimes considered a subspecies of African Swift.
Pallid Swift
A medium-sized swift (16-17 cm) similar to Common Swift but paler, sandy-brown overall with a larger white throat patch. Found across southern Europe, North Africa, and the Middle East. Aerial insectivore. Long-distance migrant wintering in sub-Saharan Africa and South Asia.