Glossy Swiftlet vs White-collared Swift
Collocalia esculenta 对比 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Glossy Swiftlet | White-collared Swift |
|---|---|---|
| 学名 | Collocalia esculenta | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 19.9 cm (7.8 in) | 42.5 cm (16.7 in) |
| 体重 | 8.66 g (0.31 oz) | 106.45 g (3.75 oz) |
| 食性 | Feeds on aerial plankton including tiny flies and spiders; forages in large noisy flocks above … | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 产卵数 | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Glossy Swiftlet
Rapid, high-pitched twittering; thin 'tsit-tsit-tsit' in flight; echolocation clicks audible in cave roosts; very common; calls over forest and open areas; colonial and noisy
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
Glossy Swiftlet
Found from India and Sri Lanka through Southeast Asia to New Guinea, Australia, and Pacific islands. One of the most widespread swiftlets.
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
Glossy Swiftlet
White-collared Swift
How to Tell Them Apart
Glossy Swiftlet
Tiny; brilliant blue-green glossy upperparts; contrasting white rump patch; white underparts; deeply forked tail; widespread Indo-Pacific species and one of the most colourful swiftlets with a striking tricolour of gloss, …
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
Glossy Swiftlet
灰腰金丝燕从印度到太平洋诸岛广泛分布，具有光泽绿黑色羽毛的小型金丝燕。
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。