Uniform Swiftlet vs Alpine Swift
Aerodramus vanikorensis в сравнении с Tachymarptis melba
Side-by-Side Comparison
| Характеристика | Uniform Swiftlet | Alpine Swift |
|---|---|---|
| Научное название | Aerodramus vanikorensis | Tachymarptis melba |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 23,2 cm (9.1 in) | 43,9 cm (17.3 in) |
| Масса | 10,4 g (0.37 oz) | 97,5 g (3.44 oz) |
| Питание | Tiny aerial insectivore taking small flying insects and spiders; congregates where insects emerge over water. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Размер кладки | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Uniform Swiftlet
Thin, high-pitched twittering; 'tsit-tsit' notes over Pacific islands; echolocation clicks inside caves; uniform dark plumage matched by simple unremarkable call quality
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Uniform Swiftlet
Found across Melanesia from the Moluccas and New Guinea east through the Solomons, Vanuatu, and Fiji. Resident in diverse habitats.
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
Uniform Swiftlet
Alpine Swift
How to Tell Them Apart
Uniform Swiftlet
Small; dark grey-brown plumage throughout with rump barely or not at all paler than back; underparts slightly paler grey-brown; forked tail; unusually for Aerodramus, has minimal rump contrast; widespread Melanesian …
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
Uniform Swiftlet
A small swiftlet (11-12 cm) widespread from the Malay Peninsula through Indonesia to Melanesia. Dark uniform plumage with a slightly paler rump. Aerial insectivore. Colonial cave nester using echolocation. One of the most taxonomically complex swiftlet species.
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.