Mine had some skin problems for a while. I started giving him xtra Vit C and fish oil, and it cleared it up in no time. Still not sure what got him, he just got real lethargic one night and died the next morning. But he was 16, and the vet commended me that he was very healthy, and sent me a card after he died.
I was pretty broken about it. He was my housemate after my wife died.
I am not looking forward to the day one of them goes to pheasant heaven.