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From the U.S. Fish and Wildlife Service's online digital media library .
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Metadata
Title: Tundra Swans
Alternative Title: Cygnus columbianus
Creator: Dewhurst, Donna A.
Source: AK/RO/03241
Contributor: ASSISTANT REGIONAL DIRECTOR-EXTERNAL AFFAIRS
Rights: (public domain)
Subject: Refuges, Back Bay National Wildlife Refuge, Virginia Beach, Virginia, Birds, Waterfowl
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. |
