Papuan Swiftlet vs Great Dusky Swift
Aerodramus papuensis 比較対象 Cypseloides senex
Side-by-Side Comparison
| 属性 | Papuan Swiftlet | Great Dusky Swift |
|---|---|---|
| 学名 | Aerodramus papuensis | Cypseloides senex |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Data Deficient | Least Concern |
| 体長 | — | — |
| 翼開長 | 26.5 cm (10.4 in) | 33.8 cm (13.3 in) |
| 体重 | 20.4 g (0.72 oz) | 83.0 g (2.93 oz) |
| 食性 | Feeds aerially on tiny flying insects and drifting spiders; often forages in mixed-species flocks over … | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … |
| 一腹卵数 | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Papuan Swiftlet
High thin twittering; 'tsit-tsit' over New Guinea; echolocation clicks used in cave roosts; larger than many swiftlets; slightly deeper calls; data deficient in recordings
Great Dusky Swift
Loud, churring trill; harsher and louder than other Cypseloides; calls over Iguacu Falls and major Neotropical waterfalls; buzzy 'bzzzt-bzzzt' in aerial groups
Geographic Range & Migration
Papuan Swiftlet
Found in lowland New Guinea and the Bismarck Archipelago. Resident in lowland rainforest and forest edge. Little-known Papuan endemic.
Great Dusky Swift
Found in eastern South America from Venezuela and the Guianas south to Bolivia and Paraguay. Resident near rocky cliffs and waterfalls.
保全状況
Papuan Swiftlet
Great Dusky Swift
How to Tell Them Apart
Papuan Swiftlet
Small; dark brownish-grey upperparts; pale grey rump band; underparts pale grey; forked tail; New Guinea swiftlet; large for the genus; data-deficient with limited specimens; rump band moderately contrasting with dark …
Great Dusky Swift
Very large; entirely dark sooty-brown with pale grey forehead and chin scaling; slightly paler underparts; broad wings; largest Cypseloides swift; South American waterfall specialist with dusky uniform plumage and imposing …
About These Birds
Papuan Swiftlet
パプアアナツバメはニューギニア島に固有のアナツバメで、山岳地帯の洞窟に巣を作る。
Great Dusky Swift
グレートダスキースウィフトはブラジルとアルゼンチンに分布し、大きな滝の周辺で繁殖するアマツバメである。