Pallid Swift vs Western Glossy Swiftlet
Apus pallidus 비교 대상 Collocalia affinis
Side-by-Side Comparison
| 속성 | Pallid Swift | Western Glossy Swiftlet |
|---|---|---|
| 학명 | Apus pallidus | Collocalia affinis |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Not Evaluated |
| 체장 | — | — |
| 날개 폭 | 33.4 cm (13.1 in) | — |
| 체중 | 42.25 g (1.49 oz) | 8.65 g (0.31 oz) |
| 식성 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. |
| 산란 수 | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Western Glossy Swiftlet
High, thin 'tsit-tsit'; rapid chittering in flight; echolocation clicks used inside caves; tiny size produces very high-pitched thin calls; soft twittering over forest
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Western Glossy Swiftlet
Found from the Andaman Islands and northeastern India through Southeast Asia to Borneo and the Philippines. Resident in diverse forest habitats.
보전 상태
Pallid Swift
Western Glossy Swiftlet
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
Western Glossy Swiftlet
Tiny; glossy blue-black upperparts with green iridescence; underparts dark sooty-grey; white-buff rump band; deeply forked tail; recently split taxon similar to Philippine Glossy Swiftlet but with subtly different rump and …
About These Birds
Pallid Swift
창백한 칼새는 지중해와 중동, 아시아 중부에서 번식하고 아프리카에서 월동합니다. 연한 갈색 깃털과 목의 연한 색이 특징이며, 절벽과 건물에서 번식합니다.
Western Glossy Swiftlet
흰배칼새(Collocalia affinis)는 동남아시아와 인도 동부에 분포하는 소형 칼새입니다. 흰 배와 어두운 윗면이 특징이며, 동굴과 절벽에 둥지를 짓습니다.