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Song & Call Comparison
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Song & Call Comparison
Blyth's Swift
鸣唱
Loud, piercing screech with shrill metallic quality; powerful prolonged calls audible from considerable distances in open sky.
Alpine Swift
鸣唱
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
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Geographic Range & Migration
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Geographic Range & Migration
Blyth's Swift
Found from Central Asia and the Himalayas east to China and southeastern Russia. Migratory; winters in South and Southeast Asia.
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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Conservation Status Comparison
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保护状况
Not Evaluated
Blyth's Swift
Least Concern
Alpine Swift
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
Blyth's Swift
羽毛
Dark blackish-brown upperparts; white rump patch; white throat; underparts dark brown; deeply forked tail; recently described species closely related to Pacific Swift; separation based on molecular and biometric characters.
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 Each Bird (Descriptions)
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Related Comparisons
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More Birds in Family
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