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ERROR : Server Busy(-1105) Trumpeter Swan  - Innoko National Wildlife Refuge From the U.S. Fish and Wildlife Service's online digital media library .
 Check http://images.fws.gov/ for higher quality version.
 
 Metadata
 Title: Swan
 Alternative Title: (none)
 Creator: U.S. Fish and Wildlife Service
 Source: Innoko NWR-038
 Publisher: U.S. Fish and Wildlife Service
 Contributor: INNOKO NATIONAL WILDLIFE REFUGE
 Rights: (public domain)
 Subject: Refuges, Innoko National Wildlife Refuge, Species, Birds
 
 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.
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