I have been having a lot of trouble with Lola ( one of my buff orpingtons). It all started about 4 weeks ago when she started to lay on her eggs, but first i thought she was just being a bit silly and just wanting to keep dry but she wouldn't get off them and stopped eating and drinking. I started to get really worried because we would lift her out of her egg box but she would come out for about 1 minute and then wander back in. She was a lot skinnier than Henna ( the other buff) but when we got her out of the nesting box she would fluff herself up and lay there for ages. If you ever have a hen like this all you have to do is shut her out of the egg box and soon she should stop. Hope this is useful for the chicken keepers,
Hightown