My house hasn't been completed yet.
Two walls on the roving room are still not completed.
Metal sheet roofing and roof trust hasn't been erected.
No wood planks, no sound system, every floor there was at least one unfinished wall.
And yet, today in the late afternoon after heavy rain, many impatient birds came to inspect the house without any sound to attract them.
What you may hear from the video is their natural sound.
A big pond in front of my bird house. Certainly a plus for the location.