Tundra Swan (Cygnus columbianus)

About Tundra Swan (Cygnus columbianus)

• Kingdom: Animals
• Phylum: Chordates
• Class: Birds
• Order: Anseriformes
• Family: Swans, Geese, and Ducks

The tundra swan is a small swan of the Holarctic. The two taxa within it are usually regarded as conspecific, but are also sometimes split into two species: Bewick's swan of the Palaearctic and the whistling swan proper of the Nearctic. Birds from eastern Russia are sometimes separated as the subspecies C. c. jankowskii, but this is not widely accepted as distinct, with most authors including them in C. c. bewickii.

Source: Wikipedia