| NOUN | animal | Cygnus columbianus columbianus, whistling swan | North American subspecies of tundra swan having a soft whistling note |
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| Meaning | North American subspecies of tundra swan having a soft whistling note. | |
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| Synonym | whistling swan | |
| Broader | tundra swan, Cygnus columbianus | swan that nests in tundra regions of the New and Old Worlds |
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