Flock of great Egret in Pond in morning

agricultural field alertness animals in the wild backgrounds beak bird bird watching ecosystem egret emigration and immigration environment environmental conservation feather film moving image flock of birds flying great egret group of animals hd format herd heron horizontal large living organism marsh motion nature neck no people non us film location outdoors safari animals savannah slow slow motion social issues stork summer swamp thailand tropical bird tropical climate watching water bird wetland wilderness wilderness area wildlife reserve young animal