Only during the day? Hmmmmmm.
[I'm watching that whole recorded series right now]....LOL
My daughter has heard this here in Fairfax, Virginia. I got the YouTube video from someone on FB and I was playing it and my daughter was listening to it. She told me, “I don’t want to freak you out, but I’ve heard this!” We live in a huge apartment complex where there is an identical building being built next door and there is a huge crane on it. She heard the sound at night and she thought it was the wind moving the crane. I told her that the crane most probably has to be secured and not able to be moved by the wind or it would be unsafe. She and I are both a bit freaked now. I told her if she hears it again to come and wake me!