Philippine Swiftlet vs Pallid Swift
Aerodramus mearnsi 对比 Apus pallidus
Side-by-Side Comparison
| 属性 | Philippine Swiftlet | Pallid Swift |
|---|---|---|
| 学名 | Aerodramus mearnsi | Apus pallidus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 21.8 cm (8.6 in) | 33.4 cm (13.1 in) |
| 体重 | 11.5 g (0.41 oz) | 42.25 g (1.49 oz) |
| 食性 | Obligate aerial feeder on microscopic flying insects and spiders; highly social forager over tropical forest. | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| 产卵数 | 4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Philippine Swiftlet
High twittering trill; thin 'tsit-tsit' notes over Philippine mountains; echolocation clicks in cave roosts; calls softly; flock produces chattering at roost; unremarkable vocalizations
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Geographic Range & Migration
Philippine Swiftlet
Endemic to the Philippines, found on Luzon, Mindanao, Mindoro, and adjacent islands. Resident in lowland and hill forest and open areas.
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
保护状况
Philippine Swiftlet
Pallid Swift
How to Tell Them Apart
Philippine Swiftlet
Small; dark grey-brown upperparts with faint gloss; pale grey rump band; underparts greyish-white; moderately forked tail; Philippine endemic using echolocation; echolocation ability distinguishes Aerodramus from Collocalia swiftlets.
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
Philippine Swiftlet
一种小型金丝燕（体长10-11厘米），特产于菲律宾。体羽深色，腰部浅色。属雨燕科（Apodidae），在菲律宾岛屿洞穴中繁殖。
Pallid Swift
淡色雨燕在地中海沿岸和北非繁殖，颜色比普通雨燕更淡。