CYGCOL

 

Bird Identification Guide Sébastien Reeber

 

Wildfowl of Europe, Asia and North America

 

Waterfowl of North America, Europe & Asia

Tundra Swan Cygnus columbianus

Tundra (Whistling) Swan Cygnus columbianus columbianus (North America)

Adult (def. basic)

Juvenile (1st basic)/1st winter (formative)

Bewick's Swan Cygnus columbianus bewickii (Eurasia)

Adult (def. basic)

Juvenile (1st basic)/1st winter (formative)

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