I have 2 buff Orps and 2 EEs. They are all 17 weeks old. When I put them outside into a coop that came from a kit, it had two nesting boxes in it. They slept in there forever. Someone I work with said that I needed to kick them out of there because they are supposed to sleep in the coop, not the boxes. So I put up cardboard so that they could no longer get into the boxes. I have shavings in the nesting box and a golf ball set up in each of them. When should I open up the nesting box to them? Should I wait til I see an egg somewhere or now so that they can see that there is an "egg" in the box and hopefully figure it out?