I have a small flock of 6 birds in upstate NY. Three of the six birds have begun laying for me but none of them will use their nest boxes. I had an older flock of birds awhile back that used the same coop and nest boxes with no problem at all. The boxes are roughly 12"x12" with straw as bedding. I should add that my chickens are not free ranging. They are in an enclosed coop and run. I have tried the golf ball technique, and I also tried leaving some real eggs in the boxes, but no luck yet. Should I just remain patient and hope that the girls will get the idea in time? Any suggestions are greatly appreciated.