I have a chicken who appears to be sick. Much more like she's depressed. She barely eats, so has lost lots of weight. She barely drinks as well. She simply sits in the little "cubbies" where they lay their eggs. If you walk in there, she gets really fluffed up and "screeches" as you. Hasn't offered to bite/peck.... yet. I don't think she is laying but she might be. Not totally sure. She has the capability to fly still, and can walk around fine it seems. I often take her out of the coop and put her out in the yard with the others. She'll peck around a little and then head straight back for her spot. I don't know what I can do to make her better. Has anyone had this happen before? What did you do?