A subspecies (Cygnus columbianus subsp. columbianus) of the tundra swan found in North America and having a clear, honking call and a black beak with a yellow spot at the base.
A large, white, North American swan (Cygnus columbianus) usually having a yellow spot in front of the eye: it winters along the Atlantic coast of the U.S.
Alternative name for the Bewick's swan.
Origin of whistling-swan
- Named by Meriwether Lewis after its call, the first part of which reminded him of whistling
From American Heritage Dictionary of the English Language, 5th Edition