The tundra swan is a small Holarctic swan. The two taxa within it are usually regarded as conspecific, but are also sometimes split into two species, "Cygnus bewickii" of the Palaearctic and the whistling swan, "C. columbianus" proper, of the Nearctic.
Similar species: Ducks, Geese, Etc.
By Joe Spandrusyszyn
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Uploaded Mar 20, 2016. Captured in Tinker Nature Park Boardwalk, Pittsford, NY 14534, USA.
