dancing pair of red-crowned cranes grus japonensis with open wings on snowy meadow, mating dance ritual

action adult and animal animals asia asian avian background beautiful bird birding birds black cold couple crane cranes crown crowned dance dancing east elegant fauna field frozen group grus hokkaido japan japanase japanese japonensis love mate mating meadow natural nature open outdoors pair red redcrowned ritual season seasons snow snowy space white wild wilderness wildlife wing wings winter