Birds sing over the humming of a machine in the distance, and various human noises.
Bird noises, the humming of a machine or vehicle in the distance and various noises by a human. Birds can be heard and then a door opens and then you hear the birds again. Birds chirp until a door opens, then birdsong resumes. Birds sing over the humming of a machine in the distance, and various human noises. nature sounds and there are birds chirping in the background