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Metadata
Title: Swans
Creator: Hines, Bob
Source: WO-ART-86-CDHines1
Publisher: U.S. Fish and Wildlife Service
Contributor: DIVISION OF PUBLIC AFFAIRS
Rights: (public domain)
Audience: (general)
Subject: whistling swans
trumpeter swan
bird
birds
waterfowl
line art
illustration
illustartions

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.

The trumpeter swan (Cygnus buccinator) is a species of swan found in North America. The heaviest living bird native to North America, Cygnus buccinator is also the largest extant species of waterfowl.