The Whooper Swan (Cygnus cygnus) is a large Northern Hemisphere swan. It is the Old World counterpart of the North American Trumpeter Swan. Whooper swans can migrate many hundreds of miles to their wintering sites in northern Europe & eastern Asia. They breed in subarctic Eurasia, further south than Bewicks in the taiga zone.
Factsheet: Whooper Swan Cygnus cygnus