Uniform Swiftlet vs Pallid Swift
Aerodramus vanikorensis 비교 대상 Apus pallidus
Side-by-Side Comparison
| 속성 | Uniform Swiftlet | Pallid Swift |
|---|---|---|
| 학명 | Aerodramus vanikorensis | Apus pallidus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 23.2 cm (9.1 in) | 33.4 cm (13.1 in) |
| 체중 | 10.4 g (0.37 oz) | 42.25 g (1.49 oz) |
| 식성 | Tiny aerial insectivore taking small flying insects and spiders; congregates where insects emerge over water. | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| 산란 수 | 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
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
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.
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
보전 상태
Uniform Swiftlet
Pallid 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 …
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 …
About These Birds
Uniform Swiftlet
말레이 반도에서 인도네시아를 거쳐 멜라네시아까지 분포하는 작은 칼새류(11~12cm). 어두운 깃털에 허리 반점이 있다. 공중 식충성이다.
Pallid Swift
창백한 칼새는 지중해와 중동, 아시아 중부에서 번식하고 아프리카에서 월동합니다. 연한 갈색 깃털과 목의 연한 색이 특징이며, 절벽과 건물에서 번식합니다.