Western Glossy Swiftlet vs White-collared Swift
Collocalia affinis 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Western Glossy Swiftlet | White-collared Swift |
|---|---|---|
| 学名 | Collocalia affinis | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 42.5 cm (16.7 in) |
| 体重 | 8.65 g (0.31 oz) | 106.45 g (3.75 oz) |
| 食性 | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 产卵数 | 1-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
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
Western Glossy Swiftlet
Found from the Andaman Islands and northeastern India through Southeast Asia to Borneo and the Philippines. Resident in diverse forest habitats.
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
Western Glossy Swiftlet
White-collared Swift
How to Tell Them Apart
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 …
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
Western Glossy Swiftlet
西部光背雨燕(Collocalia affinis)是一种体长9-10厘米的小型金丝燕，分布于马来半岛、苏门答腊和婆罗洲的低地和丘陵森林。上体具蓝黑光泽。空中捕食昆虫，在洞穴或岩壁上用唾液筑巢。
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。