I have a 5-6 year old banty rooster that we call Cap'n Jack. He was fine in the evening when I checked on flock at 10 pm, Christmas day. By 8:00 am the next day, he was very sick. It was 8 degrees that night. I had two heat lights on them and temp stays btwn 20-40 degrees in the coop. Small flock of 9, One other hen recently has had what we call a poopy butt w/ poo stuck on her feathers and she just got a bit grumpy and quiet. We cleaned it up and she is now acting better. Cap'n Jack has runny white poo,he just stands there or sits there with feather ruffled up. He never did have much of an appetite, still barely eating. He is sleeping a lot. His comb is usually red. Now it's very dark. He has scale mites I've been fighting since this summer or so. I am using vasoline on his feet and legs. He has no lice. I use DE for worming. He is always shaking a little like he is cold, even in warm weather. However he doesn't shake when I have him wrapped up in a towel. I am not sure what to give him since he is not wanting to eat or drink. I have given him some watered down yogurt (with a spoon at corner of beak), organic feed and scratch. He is inside in our kennel in the kitchen. Any ideas or suggestions would be very much appreciated. I'm not sure if he is just old or if he has an infection or if his heart is giving out. Thank you so much, we are very worried about the little guy.