I had six pullets three of them are about 4 months old and the other two are a little over 6 months and 1 roo. I just went outside and checked on everyone in the coop and one of the younger pullets were dead. It was a recent death, she was still warm and rigamortis hadn't set yet. Also, with the cold she wasn't frozen. I have noticed that since I introduced them into the coop they seem like they haven't eaten much but they still are eating. I have been keeping an eye on them since I introduced them to the others three weeks ago. They seem to be doing fine no fighting between them and the other chickens. They seem to be healthy just not developing as fast as they were when I had them inside IMHO. The only thing I can thing of was it died from starvation but again it doesn't seem likely. No disease from I can see could have caused it. I don't want anymore to die anyone have any suggestions?