Ameline Swiftlet vs Great Dusky Swift

Aerodramus amelis 比較対象 Cypseloides senex

Side-by-Side Comparison

属性 Ameline Swiftlet Great Dusky Swift
学名 Aerodramus amelis Cypseloides senex
Caprimulgiformes Caprimulgiformes
Apodidae Apodidae
保全状況 Not Evaluated Least Concern
体長
翼開長 33.8 cm (13.3 in)
体重 17.9 g (0.63 oz) 83.0 g (2.93 oz)
食性 Obligate aerial feeder on microscopic flying insects and spiders; highly social forager over tropical forest. Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial …
一腹卵数 1-2 1-2
Population Trend

Habitat Comparison

共通生息地

Ameline Swiftlet only

None

Great Dusky Swift only

None

Song & Call Comparison

Ameline Swiftlet

さえずり

High twittering; thin 'tsit' calls; echolocation clicks in cave roosts; poorly documented species; slightly larger than most swiftlets; calls faintly over island habitats

Great Dusky Swift

さえずり

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

Ameline Swiftlet

Found on Ambon and the southern Moluccas of Indonesia. Closely related to Uniform Swiftlet; restricted to Moluccan lowlands and hills.

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

Not Evaluated

Ameline Swiftlet

Least Concern

Great Dusky Swift

How to Tell Them Apart

Ameline Swiftlet

羽毛

Small; dark brownish-grey upperparts; pale grey rump band; underparts pale whitish-grey; forked tail; recently described Wallacean swiftlet from the Sulawesi region; larger than most swiftlets in the area with well-defined …

Great Dusky Swift

羽毛

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

Ameline Swiftlet

パラオアナツバメはパラオ諸島に固有のアナツバメで、石灰岩の洞窟に巣を作る。

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。

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