Amazing aerial pull-back from a forest of fall leaves in Hamburg, PA over a road with a murmuration of black birds whirling above the field

flock murmuration swarm flying flight wings feathers drone starlings formation movement habitat earth nature bird wildlife fly wing grassland migratory wilderness hunting fowl aerial air avian migration autumn migrate pasture rural land direction pennsylvania phenomenon field road moving herd wind breeze gust windy pattern cooperative wanderlust tailwind physics grass