White Swans,in Kushiro Shitsugen,Hokkaido,Japan,Filmed in 4K

crowing environmental conservation hokkaido vertebrate kushiro subprefecture social issues one animal season animals in the wild four seasons animal wing outdoors animal landscape lifestyles national park group of animals japan kushiro shitsugen national park 4k herd mute swan animal body part two animals water bird animal migration bird winter autumn cute north travel wetland environment autumn leaf color duck - bird beauty in nature protection birdsong beauty animal nest swan nature marsh white animal wildlife tourism named animal flying