Pallid Swift vs Bornean Swiftlet
Apus pallidus 对比 Collocalia dodgei
Side-by-Side Comparison
| 属性 | Pallid Swift | Bornean Swiftlet |
|---|---|---|
| 学名 | Apus pallidus | Collocalia dodgei |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 33.4 cm (13.1 in) | — |
| 体重 | 42.25 g (1.49 oz) | 6.1 g (0.22 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Small aerial insectivore feeding on minute flying insects and spiders; forages over forest canopy and … |
| 产卵数 | 1-4 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Bornean Swiftlet
High thin twittering; soft 'tsit' notes over Borneo mountains; echolocation in cave roosts; tiny highland swiftlet; call weakly audible; soft rapid chittering in flight
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Bornean Swiftlet
Endemic to Borneo in lowland dipterocarp forest and hill forest. Closely related to Glossy Swiftlet; range barely extends to Palawan.
保护状况
Pallid Swift
Bornean Swiftlet
How to Tell Them Apart
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 …
Bornean Swiftlet
Tiny; dark glossy blue-green upperparts; pale whitish rump band; dark sooty-grey underparts; forked tail; Borneo endemic restricted to montane zones; similar to Glossy Swiftlet but less white below and confined …
About These Birds
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。
Bornean Swiftlet
婆罗洲金丝燕(Collocalia dodgei)是一种体长9-10厘米的小型金丝燕，为海拔900-3400米的婆罗洲北部山地森林特有种。深色有光泽羽毛。空中捕食昆虫，在山地洞穴中筑巢。