. . . . _:b75625016 . . "Cygnus columbianus bewickii" . . "Cygnus columbianus bewickii" . . "Yarrell, 1830" . _:b75625016 "GBIF id" . "6178421" . "Cygnus columbianus bewickii Yarrell, 1830" . _:b75625016 . _:b75625016 . "2714" . "Cygnus columbianus bewickii" . . _:b75625016 "6178421" . .