I have an 8 month old wyndotte, who has been spending a lot of time on the nest. She will come out some during the day, i saw her taking a dust bath and scratching about, but then she goes back in the coop and sits on an empty nest. I bring her back out, she will eat a treat, the fluff up, shake, and run back to the nest. I did check her all over, no lice, no mites that I could see. Her poop looks normal. Eyes are clear. She seems to be eating... Any ideas?