So I have had a rescued rooster for about a month now. He had really bad leg mites and he has, what I thought, was a respiratory issue. His comb turns purple and he occasionally open mouth breathes. I have tried tylan, vetrx, natural herbs and spices (oregano and ginger) and now he's on duramycin. No change. It looks like he has something blocking his left nostril and someone suggested his comb is too large and is squishing his nostrils. But I was just bathing his and I noticed, before I started blowdrying him his comb was purple. When I was finished it was a nice bright red? Which got me thinking maybe he has trouble regulating his body temperature. Then It got me thinking, he also has trouble with his legs which I had been attributing to his leg mites. He lifts them up really high when he walks and holds them up a lot like they are cold. He also can't perch well or grip well and curls his toes a lot. Could this "respiratory issue" really be a circulatory issue and he's having a hard time keeping himself warm? He doesn't have any other respiratory disease symptoms, it was just the purple comb and gasping for air. Luckily he's a little guy, just a bantam barred rock, so it isn't like his heart has to pump blood to this huge chicken. Any thought are much appreciated! He has two girlfriends waiting for him outside, but I want to make sure it isn't anything contagious first. I've looked up every chicken respiratory issue nder the sun and it doesn't sound like any of them.