I've lost a few chickens this winter and I'm not sure why. I haven't had a problem with chickens dying in the winter before. But, the weather has been very odd this year and I wonder if it has anything to do with it. we will get sub zero temps for a week, and then the next week it will jump to in the 40's. then it will jump to the 20's, then sometimes back to 40's, then back to sub zero... etc. the pattern just keeps jumping around like this all winter long thus far. Do you think this could be the cause of having some die off? Or do you think they have some kind of disease? I just put more shavings out last night in hopes that that will help.