They will wonder off. Quail are alot different than chickens. You will need to have them confined to keep the from leaving.
I think this is true, but on the other hand during a very severe storm last month my quail hutch went rolling down the pasture, I thought I had lost quite a few. After several days they started appearing by the coop and we would just reach down and pick them up got about 10 back, go figure.