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Cygnus cygnus

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Bizarre Swan Deaths Reported in Europe As Birds Die After Bleeding From Nostrils and Spinning in Circles
https://www.newsweek.com/swan-deaths-birds-bleed-nostrils-1550831
Avian influenza Cygnus cygnus Influenza A virus subtype H5N8
Swan - Wikipedia
https://en.wikipedia.org/wiki/Swan
Cygnus cygnus