I made this mistake with my Black Star, Barred Rock, and Buff. I watched them for a while and found where they were laying. I had to keep all of them enclosed for a couple of weeks and now the all lay in the coop. Except for our Banty. I find her nests all over the yard. These RIR girls are just not laying. I will just have to wait it out a little longer and see. We are not raising for meat so we won't slaughter them.