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

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