This is very important. 3 chickens,(silkie cockeral 6 1/2 months, cochin bantam pullet 7 1/2 months, polish pullet 6 1/2 months) have been living in a dog kennel inside for about weeks. They are let out to roam the garage area every day 2 times a day. Today, the weather has started to improve, so I put them all back out in the coop with fresh pine bedding, food, and water. As I was setting down the polish pullet, I noticed the end of her toes were turning black on one foot. So far two of them look pretty bad. This pullet has had a few health issues before: bumblefoot, dehydration, gets lethargic about once a month very badly. (i have to bring her inside for a whole day and hold her up the entire time otherwise she will fall over, one time she was very close to death). I have no idea what to do. This is NOT frostbite, because she was inside in a heated garage. What do I do to prevent her toes from falling off.. And could this kill her? I love her VERY much, and really don't want her to die.. Help please.