Mountain Swiftlet vs White-collared Swift
Aerodramus hirundinaceus 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Mountain Swiftlet | White-collared Swift |
|---|---|---|
| 学名 | Aerodramus hirundinaceus | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.0 cm (9.1 in) | 42.5 cm (16.7 in) |
| 体重 | 9.700000000000001 g (0.34 oz) | 106.45 g (3.75 oz) |
| 食性 | Entirely airborne insectivore; feeds on minute flying insects and web-dispersing spiders over open habitats. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 产卵数 | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mountain Swiftlet
High, thin twittering; 'tsit-tsit' over New Guinea highlands; echolocation clicks used in cave roosts; calls weakly in flight; colonial; flock calls produce soft chittering
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
Geographic Range & Migration
Mountain Swiftlet
Found in montane New Guinea at 1,200–3,900 m. Resident in montane rainforest, moss forest, and subalpine grassland. Common in highlands.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
保护状况
Mountain Swiftlet
White-collared Swift
How to Tell Them Apart
Mountain Swiftlet
Small; dark blackish-grey upperparts; pale grey rump band; underparts pale greyish-white; forked tail; New Guinea montane endemic; similar to White-rumped Swiftlet but greyer overall and restricted to high-altitude zones.
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
About These Birds
Mountain Swiftlet
一种小型金丝燕（体长10-11厘米），分布于新几内亚海拔1,500至3,800米的山地地区。体羽深色。属雨燕科（Apodidae），在山地洞穴中繁殖，是高海拔金丝燕中较为独特的一种。
White-collared Swift
白领雨燕广泛分布于拉丁美洲山地，以白色颈环为特征的大型雨燕。