. . . . . . . . "Animalia" . "Anseriformes" . . . . "Chordata" . "Aves" . . . . . "Anatidae" . . "(Linnaeus 1758)" . . "Cygnus" . "Cygnus cygnus (Linnaeus 1758)" . . . "Whooper Swan" . "Cygnus cygnus" .