Scarce Swift vs Alpine Swift
Schoutedenapus myoptilus в сравнении с Tachymarptis melba
Side-by-Side Comparison
| Характеристика | Scarce Swift | Alpine Swift |
|---|---|---|
| Научное название | Schoutedenapus myoptilus | Tachymarptis melba |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 25,9 cm (10.2 in) | 43,9 cm (17.3 in) |
| Масса | 26,916666666666668 g (0.95 oz) | 97,5 g (3.44 oz) |
| Питание | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Размер кладки | -- | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Scarce Swift
High, sharp twittering; thin 'tsee-tsee' calls over African montane forest; rarely documented; calls from small flocks over mountain ridges; higher-pitched than larger African swifts
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Scarce Swift
Found in montane East Africa from Uganda and Kenya south to Malawi and Mozambique. Resident in mountain forests above 1,500 m. Scarce.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
Охранный статус
Scarce Swift
Alpine Swift
How to Tell Them Apart
Scarce Swift
Dark sooty-brown overall; underparts paler grey-brown; pale grey-buff chin; moderately forked tail; African montane swift of the Albertine Rift; name reflects rarity in field; plumage uniformly dark with minimal pale …
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
About These Birds
Scarce Swift
A medium-sized swift (17-18 cm) found in montane forests of eastern Africa, from Ethiopia to Malawi and Mozambique. Dark sooty-brown plumage. Aerial insectivore, foraging over forest canopy at 1,000-3,000 m elevation. Uncommon and poorly known.
Alpine Swift
A large swift (20-22 cm, wingspan 54-60 cm) with a white belly and throat contrasting with dark brown upperparts. Found from southern Europe and Africa to Central Asia. Aerial insectivore, foraging at great heights. Nests on cliff faces in large colonies. Powerful, fast flier.