art view of two swans. whooper swan, cygnus cygnus, bird portrait with open bill, lake kusharo, other blurred swan in the

animal backgrou background beak beautiful beauty bill bird black blue blurred cold country cygnus detail field flock gray group hokkaido horizon hornboga hornborgasjon japan kusharo lake landscape nature neck open other portrait profile scandinavia scene scenery scenic snow spring swan swans sweden view water wetland white whooper wild wilderness wildlife wing winter with yellow