I went out one day and saw my roosters toes were stiff, he couldn't bend them at all. When he walked he lifted his feet way higher then normal. All my other hens are just fine. I brought him inside, no signs of frostbite, nothing out of the ordinary. He perked up quickly. Since then, ive tried putting him back out in the coop and when i did today i found him lying on his side on the floor, lethargic, I thought he was dead. He was only out for a couple hours, and its warmer today than it has been latley. Again, I brought him inside and now he's fine. Does anyone have any suggestions?