I went out to the coop to collect eggs and feed and water and one of my EE hens is dying. She was laying on the floor on her side and appeared to be dead. I picked her up and she lifted her head and looked at me. I took her out in the sunlight to check her out and she has no visible marks of trauma at all. She is skin and bones like she hasn't been eating at all and is barely breathing. I laid her in the grass and she went back to looking like she was dead except for some shallow breathing. As of yesterday, she seemed fine and flighty as usual. I checked the rest of the chickens and they are healthy and meaty. The EE chickens that I have were purchased from TSC this spring and I have raised them from day old chicks. They aren't old enough to lay yet. They are housed with some 2 year old dominiques and some 3 month old Cochins. That have all gotten along just fine and there has never been any fighting other than some play sparring from the chicks. I've never had any problem with disease here. What could have happened? She is still alive right now but I don't think she will be much longer.