Tundra Swan (Cygnus columbianus) {!--미국고니--> From: Scanner@scan.com
Newsgroups: alt.binaries.pictures.animals
Subject: Re: specified pics - Whistling Swan (2)
Date: Sun, 07 Sep 1997 07:55:10 -0500
"WhistlingSwan_02.JPG"
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Donald Mathis
San Antonio, Texas USA
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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.