African Swift vs Blyth's Swift
Apus barbatus в сравнении с Apus leuconyx
Side-by-Side Comparison
| Характеристика | African Swift | Blyth's Swift |
|---|---|---|
| Научное название | Apus barbatus | Apus leuconyx |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Not Evaluated |
| Длина | — | — |
| Размах крыльев | 34,2 cm (13.5 in) | — |
| Масса | 42,666666666666664 g (1.51 oz) | 42,949999999999996 g (1.52 oz) |
| Питание | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | Obligate aerial insectivore; takes small flies, beetles, and aerial spiders in swooping fast-flight passes. |
| Размер кладки | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
African Swift
Sharp, piercing screech followed by rapid chatter; intense series of notes escalating in speed and volume before fading.
Blyth's Swift
Loud, piercing screech with shrill metallic quality; powerful prolonged calls audible from considerable distances in open sky.
Geographic Range & Migration
African Swift
Found across sub-Saharan Africa from Senegal east to Ethiopia and south to South Africa. One of Africa's most common swift species.
Blyth's Swift
Found from Central Asia and the Himalayas east to China and southeastern Russia. Migratory; winters in South and Southeast Asia.
Охранный статус
African Swift
Blyth's Swift
How to Tell Them Apart
African Swift
Dark sooty-brown throughout; pale throat patch whitish-grey; underparts slightly paler; broadly similar to Common Swift but slightly larger and marginally paler below; widespread Sub-Saharan African species.
Blyth's Swift
Dark blackish-brown upperparts; white rump patch; white throat; underparts dark brown; deeply forked tail; recently described species closely related to Pacific Swift; separation based on molecular and biometric characters.
About These Birds
African Swift
A medium-sized swift (16-17 cm) found across sub-Saharan Africa. Dark sooty-brown plumage, darker than Pallid Swift. Aerial insectivore, foraging high over varied habitats from forests to savannas. Breeds on cliffs and buildings. Resident or partial migrant within Africa.
Blyth's Swift
A medium-sized swift found in montane regions of Central and East Asia. Dark plumage with a white chin patch. Aerial insectivore, foraging over mountain valleys and cliffs. Named after Edward Blyth. Breeds in rock crevices on high cliffs. Poorly known migratory patterns.