Cygnus columbianus bewickii
( Cygnusの一種) 学名 : Cygnus columbianus bewickii 属 : Cygnus
Cygnus columbianus bewickii, ( Cygnusの一種)
学名: Cygnus columbianus bewickii
属: Cygnus
Photo By Alpsdake , used under CC-BY-SA-4.0 /Cropped and compressed from original
Photo By Alpsdake , used under CC-BY-SA-4.0 /Cropped and compressed from original