Trumpeter Swan {!--나팔수큰고니--> pair take off From the U.S. Fish and Wildlife Service's online digital media library . 
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Metadata 
Title: Trumpeter Swans  
Alternative Title: Cygnus buccinator  
Creator: Hultman, Don  
Source: WV-9100-General2 
Publisher: U.S. Fish and Wildlife Service 
Contributor: NATIONAL CONSERVATION TRAINING CENTER-PUBLICATIONS AND TRAINING MATERIALS 
Rights: (public domain) 
Subject: waterfowl
birds
bird
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.