noun
- North American subspecies of tundra swan having a soft whistling note.
- synonyms: Cygnus columbianus columbianus
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). whistling swan. Retrieved September 22, 2026, from http://smartdefine.org/whistling_swan/definitions/1196850 |
| Chicago | WordNet. 2010. "whistling swan" http://smartdefine.org/whistling_swan/definitions/1196850 (accessed September 22, 2026). |
| Harvard | WordNet 2010, whistling swan, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/whistling_swan/definitions/1196850>. |
| MLA | WordNet. "whistling swan" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/whistling_swan/definitions/1196850> |