Pallid Swift vs Tenggara Swiftlet
Apus pallidus 对比 Collocalia sumbawae
Side-by-Side Comparison
| 属性 | Pallid Swift | Tenggara Swiftlet |
|---|---|---|
| 学名 | Apus pallidus | Collocalia sumbawae |
| 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) | 5.9 g (0.21 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial plankton specialist catching tiny flies, gnats, and airborne spiders in tight acrobatic flight. |
| 产卵数 | 1-4 | 1-2 |
| 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.
Tenggara Swiftlet
Very high thin twittering; rapid 'tsit' notes over Sumbawa; echolocation clicks used in limestone caves; call among the highest frequency of any swiftlet species
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.
Tenggara Swiftlet
Endemic to the Lesser Sundas of Indonesia including Sumbawa, Flores, and Timor. Resident in open forest and savanna at low elevations.
保护状况
Pallid Swift
Tenggara 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 …
Tenggara Swiftlet
Tiny; dark blue-black upperparts with green gloss; pale whitish-buff rump band; dark sooty-grey underparts; Lesser Sunda Islands endemic; extremely similar to Glossy Swiftlet but restricted to eastern Indonesian islands.
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。
Tenggara Swiftlet
松巴哇金丝燕(Collocalia sumbawae)是一种体长9-10厘米的小型金丝燕，为印度尼西亚小巽他群岛（松巴哇岛、弗洛勒斯岛、松巴岛）特有种。深色有光泽羽毛。空中捕食昆虫，在洞穴和岩壁上筑巢。