How many did you end up getting?
Oh yeah, I suppose we forgot to tell you they can fly

Sounds like they have found a place they likely will roost LOL
If that's where you want them to stay, leave them there for a few days before letting them roam a lot, then at night they should return.
I have a group that stays in the rafters of one of my runs at night. I let them loose during the day. They roam the field and woods but come back to their run for food/water periodically throughout the day. If I feel I need to lock them up for some reason, I just call them in with shaking a can with scratch in it - they usually stay within sight of the coop and house.