I just moved a trio back to their small, enclosed cage that is solid other than the door that takes up two thirds of the front that is mesh. They hated being in our aviary. They freaked out every time I went in there and it wasn't for a lack of cover as I have plants, stumps with rotten insides so they make tunnels, brush piles etc. It also has a full roof, solid panels around the bottom of each side and the front, and a solid, sheltered back to it but they just didn't feel secure. One girl quit laying altogether. I may try some young ones in there to see if they are any happier, they just need to grow a bit more first. Interestingly there's a thread about 'treats for quail' and one person said her pet quail that are kept in small indoor cages will try any food she gives them and love treats, but her outdoor quail often won't try any of it.