I recently rescued a young 18 months Silkie. She came to me as she was the only bantam in the flock and was being bullied. Initially she seemed to fit in well with my mixed flick including a Silkie cock and three other silkies. She got on well with the cock, she cleaned up and seemed happy and had started laying. Now the last week, she's isolated herself, hides in corners. Doesn't come out of the enclosure. She looks tatty and unkempt. I can walk up to her and pick her up and she's listless. I took her some fresh salad today she hasn't touched it. I haven't seen her being picked on at all they just seem to totally ignore her. She isn't going into the coop til dark and I have had to pick her up and take her to bed. Do chickens get depression? I'm at a loss how to help her.