I have a dark brahma hen who is 8 months old. She was laying regularly (1 per day to 1 every other day). For the last eight days she has not layed any eggs, and she won't come out of her nesting box. She isn't laying on any other chickens eggs. If I make her come out, she will run around and peck and play, but only if I make her come out. I'm really worried, and hoping she is ok. I made her come out yesterday, she ran around outside for about an hour, and then got back in her box. I have checked her for egg binding, and I don't believe she is bound. Does anyone have any suggestions? I'm one worried mama!