I just got 5 chickens less than two weeks ago. We have been keeping the three slightly older chickens and the two younger pullets separate. Just today I noticed that when we let her out in the yard, the Americauna pullet (6 weeks old) is not pecking, is acting lethargic and does not make any noise when she is trying to chirp. I have quarantined her and am going to watch her. Do I wait for her to get better, or take action by putting her down? How do I know if she is suffering? I cannot seem to figure out what may be wrong from my research. Do I assume she is really sick or will bounce back? Is she just stressed?