I have a 4x6 walk-in aviary with 9 birds at the moment, but wanted to add some little shelters and such with the cold weather winter coming (and maybe some visual breaks, since they are all moulting right now and trying to fight each other out of irritation I imagine). What kind of structures do you think a quail would like? I'm thinking a few low walls that they can sit behind? Maybe a box with an entrance and exit hole? Right now they've got a lot of small logs, grass, hanging fake vines, a tube hide, and a little wire wall with two doors that separates the cage (and cuts down on the looney tunes chasing that they get up to sometimes), but I wanted to make something that looked a bit nicer for them. I want them to feel safe especially since some of my girls are getting stressed from everyone bouncing off the walls the last week and a half. Thanks for any suggestions~