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Metadata
Title: Tundra swans
Alternative Title: Cygnus columbianus
Creator: Menke, Dave
Source: WV-9022-General2
Publisher: U.S. Fish and Wildlife Service
Contributor: NATIONAL CONSERVATION TRAINING CENTER-PUBLICATIONS AND TRAINING MATERIALS
Rights: (public domain)
Subject: California, waterfowl, Lower Klamath NWR, National Wildlife Refuge

The tundra swan (Cygnus columbianus) is a small Holarctic swan. The two taxa within it are usually regarded as conspecific, but are also sometimes split into two species: Bewick's swan (Cygnus bewickii) of the Palaearctic and the whistling swan (Cygnus columbianus) proper of the Nearctic.