I have let mine out in a light rain thinking they would just sit on the roof and enjoy the shower - they took off and flew, not as long or as far as usual but still

A few days ago there was a group of about 8 from the feral flock that briefly joined up with mine before pealing off to their home in one of the lumberyard buildings across the street. So cool you have a big group flying now! I believe I know how you feel seeing them.
I think that's a good answer!

On any given day one or more of mine may decide to stay...dk why.