I have 12 chickens of various breeds. They have been acting strange lately but tonight when I went to shut them in, most of them were out sleeping in the snow! We have like 8-12 inches on the ground and several of them are out sleeping in it instead of inside their house. Only one of the twelve is actually in the house. What could be wrong that would make them sleep outside? Some of the are under the shelter where their food and water is but five of them were in the snow!!! One that was in the snow looked like she had run around the yard a few times before settling in the far corner. They have been so weird lately and two I found dead in the house with holes eaten in them. I thought maybe all the snow and cold was making them cannibalistic since they won't go out in the snow and stay in the house all day, but now I'm really worried. Any ideas???