Cygnus columbianus bewickii Yarrell 1830 (Bewick's swan)
Aves - Anseriformes - Anatidae
Alternative combination: Cygnus bewickii
Belongs to Cygnus columbianus according to J. F. Clements et al. 2017
Sister taxa: none
Ecology: volant folivore-granivore
Distribution:
• Quaternary of the Russian Federation (1 collection), the United Kingdom (3)
Total: 4 collections each including a single occurrence