Philippine Swiftlet vs Chestnut-collared Swift
Aerodramus mearnsi 对比 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Philippine Swiftlet | Chestnut-collared Swift |
|---|---|---|
| 学名 | Aerodramus mearnsi | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 21.8 cm (8.6 in) | 26.0 cm (10.2 in) |
| 体重 | 11.5 g (0.41 oz) | 21.8 g (0.77 oz) |
| 食性 | Obligate aerial feeder on microscopic flying insects and spiders; highly social forager over tropical forest. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 产卵数 | 4 | 2 |
| 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
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
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.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保护状况
Philippine Swiftlet
Chestnut-collared 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.
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
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。
Chestnut-collared Swift
栗领雨燕栖息于中美洲和南美洲北部的山地。