Hi there! It's a strange request and I doubt it'll work out, but it's worth a shot.

A friend of mine is living outside the city on the south of Czechia, he has a house by the forest. A few days ago some birds moved under his roof (literally). He can't see them, but he definitely hears them and their long high-pitched squeaking noises. They do it all through the night and my friend can't sleep (he's an elderly man), it's driving him crazy.

He recorded the sound the birds make. Here's a link to the recording: https://drive.google.com/drive/fold.....Wr?usp=sharing

So, maybe anyone knows what kind of birds they are based on their voices? (location is south Czechia)
And, do you guys have any ideas of how to get rid of the birds (scare them away?)?

Thanks :)