Philippine Glossy Swiftlet vs Alpine Swift
Collocalia marginata 比較対象 Tachymarptis melba
Side-by-Side Comparison
| 属性 | Philippine Glossy Swiftlet | Alpine Swift |
|---|---|---|
| 学名 | Collocalia marginata | Tachymarptis melba |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 43.9 cm (17.3 in) |
| 体重 | 7.2 g (0.25 oz) | 97.5 g (3.44 oz) |
| 食性 | 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 … |
| 一腹卵数 | -- | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Philippine Glossy Swiftlet
Very high thin twittering; 'tsit-tsit' in flight; echolocation clicks in cave roosts; extremely small; call barely audible to human ear; rapid chittering over Philippine forest
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Philippine Glossy Swiftlet
Endemic to the Philippines, found on most major islands. Resident in lowland and hill forest and open areas up to 1,500 m elevation.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
保全状況
Philippine Glossy Swiftlet
Alpine Swift
How to Tell Them Apart
Philippine Glossy Swiftlet
Tiny; glossy greenish-black upperparts; white-buff rump patch; dark sooty underparts; deeply forked tail; endemic to Philippine islands; the blue-green iridescence on the back is more pronounced than in drabber Collocalia …
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
Philippine Glossy Swiftlet
A small swiftlet (9-10 cm) endemic to the Philippines. Glossy dark plumage with pale fringes on wing feathers. Aerial insectivore, foraging over forest canopy and clearings. Colonial nester in caves. Found across most major Philippine islands.
Alpine Swift
アルプスアマツバメはヨーロッパの山岳地帯と岩壁に繁殖し、白い腹と大きな体が特徴的な長距離渡り鳥である。