Aerial view of a large flock of bean goose flying in the air over the agricultural field, sunny autumn day, autumn bird migration, wide angle drone shot moving forward

flock of birds migration flight field flock flying flapping drone swarm aerial nest crowding nature foraging bird aerial view panoramic rucava anser serrirostris fly wildlife wing scenic herd beak whooper goose crowded 4k autumn below clear sky abundance feather crowd wild air background animal nica natural bottom clear behaviour bean alert blue