I have 4 Rhode Island Red/New Hampshire cross pullets, which are about 22 weeks old. The breeder told me they would start to lay any time between 20 and 24 weeks at this time of year. Is there any indicators that they are about to lay? They were sleeping in their nest boxes, but I closed them off and now they are sleeping on the roost (I went out last night with a torch and checked - they weren't happy to see me). I have 3 nest boxes which I have now opened again on the assumption that they will lay soon, but the hay looks like they have been lying in it, but no eggs (no poop either). They haven't got anywhere to hide their eggs as they are not good at going outside yet.