Ok I'm sure this question has been asked before but what do you do about a hen who lays on the floor? She is a golden comet that just started laying 2 weeks ago. She is the oldest in the flock, her sisters are about 4 weeks younger than her. She has been laying in different spots on the floor, and yesterday she laid near the oyster shell and the egg had a crack in it. We have had nesting boxes in the coop since she was 17 weeks old and she has never wanted anything to do with them. It is a 10x10 coop and pretty roomy. I have put golf balls in the box and that doesn't seem to help. They also won't roost and sleep in the floor. Any help would be great. Thanks!