I don't know what is going on. I have a Buff Orphington that started laying eggs around the first of December, and everything was fine. About 3 days ago she did nothing but sit in the nest, no eggs and never got down to eat or drink that I ever saw. Her eyes are bright and she seems alert but tired. I have put her down in front of food and she will eat, but she eats then jumps back up in the nest. Her feathers seem loose and she is all puffed up. Out of 31 birds this is my first sick acting bird, and I would hate to lose her. Any suggestions would help!!!!!!