Bill, they must be settled before you open all the boxes... We pair and everything is locked in their boxes at first, but you always get one pair that dont take to each other, so on the first day of pairing we leave this pair out, the next day this pair go back in the boxes, and we let out one pair at a time, a couple hours a day each, and we may do this for 2-3 days, and gradually we start letting out more and more pairs at a time, two pairs at time, 3 pairs at a time ect, until eventually by day 6-7 we have successfully got every pair out of their box and content, but generally by this time, my cocks do not let my hens move from their boxes as they are generally driving very hard.