Cygnus columbianus columbianus
| Noun | 1. Cygnus columbianus columbianus - North American subspecies of tundra swan having a soft whistling note |
| 单词 | cygnus columbianus columbianus | ||
| 释义 | Cygnus columbianus columbianus
Cygnus columbianus columbianus
Synonyms for Cygnus columbianus columbianus
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