Aerial view of large flock of bean goose resting, flooded agricultural field, sunny spring day, wide angle drone shot moving forward low

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