bn:00024775n
Noun Concept
Categories: Swans, Birds described in 1815, Cygnus (genus), long volume value, Articles with 'species' microformats
EN
tundra swan  Cygnus columbianus  whistling swan  Cygnus columbianus columbianus  Bewick’s swan
EN
Swan that nests in tundra regions of the New and Old Worlds WordNet 3.0
Definitions
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Sources
EN
Swan that nests in tundra regions of the New and Old Worlds WordNet 3.0 & Open English WordNet
The tundra swan is a small swan of the Holarctic. Wikipedia
A swan of the species Cygnus columbianus that whistles when flying. OmegaWiki