Nyanza Swift vs Alpine Swift

Apus niansae 比較対象 Tachymarptis melba

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Side-by-Side Comparison

属性 Nyanza Swift Alpine Swift
学名 Apus niansae Tachymarptis melba
Caprimulgiformes Caprimulgiformes
Apodidae Apodidae
保全状況 Least Concern Least Concern
体長
翼開長 31.0 cm (12.2 in) 43.9 cm (17.3 in)
体重 32.4 g (1.14 oz) 97.5 g (3.44 oz)
食性 Obligate aerial forager; feeds entirely on the wing on small flying insects, midges, and airborne … Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal …
一腹卵数 1-3 1-4
Population Trend
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Habitat Comparison

共通生息地

None

Nyanza Swift only

Alpine Swift only

None

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Song & Call Comparison

Nyanza Swift

さえずり

High, thin sibilant trill with insect-like quality; barely perceptible rapid modulation of a single high-pitched note.

Alpine Swift

さえずり

Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.

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Geographic Range & Migration

Nyanza Swift

Found in East Africa from Ethiopia and Sudan south to Uganda and Kenya. Resident or intra-African migrant in open savanna near Lake Victoria.

Alpine Swift

Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.

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保全状況

Least Concern

Nyanza Swift

Least Concern

Alpine Swift

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How to Tell Them Apart

Nyanza Swift

羽毛

Dark sooty-brown overall; pale whitish chin and throat patch; underparts slightly paler brown; moderately forked tail; East African species similar to Common Swift but slightly paler below with a subtly …

Alpine Swift

羽毛

Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …

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About These Birds

Nyanza Swift

ニアンサアマツバメは東アフリカとエチオピア高原に生息し、岩の崖で繁殖するアマツバメである。

Alpine Swift

アルプスアマツバメはヨーロッパの山岳地帯と岩壁に繁殖し、白い腹と大きな体が特徴的な長距離渡り鳥である。

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