Last night I left on of my giant cornish hens out all night. I live in the Yukon Canada and the temperature got down to low 40f last night. I know it was not to cold for him. But when I went to put their food in their yard. I noticed the lone chicken by the gate. He did not look up. He was sleeping. I picked him up. He started to move and then went back to sleep. He has walked a little. I am feeding him water with some Keifer. He is not interested in eating or drinking. I have placed him in a box with food and water. He wakes up time to time and looks alert. I thought he might be scared or cold but now I think he is sick. Do you have any suggestions on what it could be? Within the next week we were planning on butchering him. But should I butcher him early?