I can get a video of GreycieMae's bird room which was converted from an office/bed room if you like. We removed all the furniture, ripped out the carpet, painted the floor with speckled garage floor paint, painted the walls in neutral color stripes. I mounted raw fir/pine boards on the roof to hang boings, ropes, perches, chains, swings from. I have an HD camera to spy on them. I also put fir boards along the entrance and closet doors trim as GreycieMae likes to do her own carpentry work occasionally.
I guess you could call her bird room and 'indoor aviary'.