I have had chickens from kindergarten and never had any get sick. This is my first time caring for a peafowl. He has a 50x15 ft run and a warm coop. Recently He had a swollen eye and kept it closed. After a few days of cleaning and applying cream to the eye, it is open again. But now his feathers are a bit ruffled, he opens and closes his mouth and shakes his head. He also seems weak. He is in the coop with a few chickens but they get along. I don't know what i should do. Any treatment ideas?