I have a bantam rooster that is about 1 year old now, a beautiful bird he looks healthy and eats well. He roams free with to game hens I have during the day and sleeps in our horse barn loft at night up in the rafters. About 4 days ago I noticed him limping. He stops and pulls his right leg up into his feathers and stands on one leg. then when he goes to walk he has trouble putting his weight on the leg. I managed to get close to him today when he was standing on one of the horse stall doors and saw that his feet ( both of them) have a bubbled up look and also look crusty and swollen. what could this be?? the hens he hangs out with are fine their legs are sleek. I read somewhere that mites could cause the scales to get rough, could this be it? I have had chickens for years and never have I seen anything like this. I have never had any health issues before this, any help or ideas out there??