I ended up having to cover my nesting boxes about 4 weeks ago because my chickens were sleeping in them and filling them with poop. My Chickens are now 14 weeks old. When should I uncover the nesting boxes? And when I do uncover them should I have them set up with wood chips and a fake egg in each? I have 26 EE's and I am hoping at least a couple of them will lay between 18 and 20 weeks.