A flock of adult and juvenile Trumpeter Swans grazing in a field at sunset, with the Cascade Mountains in Washington State in the distance

trumpeter swan swan cygnet young juvenile gray birds fowl field flock wildlife sunset migration washington state usa valley mountains range cascade snohomish winter 4k farm horizontal no people white nature wild animal waterfowl outdoors environmental protected freshwater bird animals in the wild group landscape grass green rural copyspace wide angle wide angle cars traffic