From all I have read, chickens do ok in cold weather if they have good air movement. We have been having very cold weather the last 4 days (as low as 0 F at night). I have 8 birds that have all been doing fine except one rooster. He insists on perching up high by himself at night and I very rarely see him come down to eat. This morning I found him curled up in the litter, I picked him up and he was very unresponsive. He wouldn't eat or drink even when I forced his beak into the warm water (like you do for chicks). Is there anything I can do? Or anything I can feed him to perk him up? I am nearly 100% sure this is because of the cold and not an injury or disease. They are about 1 year old.