Plain Swift vs Alpine Swift
Apus unicolor 비교 대상 Tachymarptis melba
Side-by-Side Comparison
| 속성 | Plain Swift | Alpine Swift |
|---|---|---|
| 학명 | Apus unicolor | Tachymarptis melba |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 29.9 cm (11.8 in) | 43.9 cm (17.3 in) |
| 체중 | 24.2 g (0.85 oz) | 97.5 g (3.44 oz) |
| 식성 | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| 산란 수 | 2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain Swift
Harsh, grating scream with descending inflection; loud raspy calls carrying urgency, often given during colony disturbance.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Plain Swift
Breeds on the Azores, Madeira, and Canary Islands. Resident on these Macaronesian archipelagos. Closely related to Common Swift.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
보전 상태
Plain Swift
Alpine Swift
How to Tell Them Apart
Plain Swift
Dark sooty-brown plumage; very faint pale chin; no distinct throat patch; entirely plain and uniform; smaller than Common Swift; Macaronesian endemic breeding in Canary Islands and Madeira; coloration slightly paler …
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
Plain Swift
단색 칼새는 카나리아 제도, 마데이라, 아조레스에 서식하는 칼새입니다. 이름과 같이 전체적으로 단조로운 검은 갈색 깃털을 가지고 있으며, 절벽과 건물에서 집을 짓습니다.
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.