Mossy-nest Swiftlet vs Alpine Swift
Aerodramus salangana в сравнении с Tachymarptis melba
Side-by-Side Comparison
| Характеристика | Mossy-nest Swiftlet | Alpine Swift |
|---|---|---|
| Научное название | Aerodramus salangana | Tachymarptis melba |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 22,7 cm (8.9 in) | 43,9 cm (17.3 in) |
| Масса | 11,3 g (0.40 oz) | 97,5 g (3.44 oz) |
| Питание | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | 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
Mossy-nest Swiftlet
Rapid thin twittering; 'chip-chip' over Borneo forests; echolocation clicks in cave roosts; uses mossy nest material; calls softly in colonial roosts; moderate-pitched swiftlet
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Mossy-nest Swiftlet
Found from the Philippines through Borneo and Sulawesi to the Moluccas. Resident in lowland and hill forest, often over rivers.
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
Mossy-nest Swiftlet
Alpine Swift
How to Tell Them Apart
Mossy-nest Swiftlet
Small; dark grey-brown upperparts with slight iridescence; pale grey-brown rump slightly paler than back; underparts greyish-white; forked tail; Sundaic swiftlet building mossy nests; rump contrast moderate, less striking than White-rumped.
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
Mossy-nest Swiftlet
A small swiftlet (11-12 cm) found from the Malay Peninsula through Indonesia to the Philippines. Dark plumage with a pale rump. Aerial insectivore. Colonial cave nester. Named for the salanga caves of Java where large colonies breed. Nests made partially of moss and saliva.
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.