Did you try putting the bird on antibiotics? I have had turkeys with bumble foot. And to fully treat them took a commitment of cleaning out the wound. I tried 2 ways both worked for me. I used hydrogen peroxide after washing with warm soap and water. Dryed it repeated hydrogen peroxide a couple...
I have a male reeves pheasant. He has the greatest personality. He is very sweet, loves to cuddle, and gets along with my other birds. He loves to be a lap bird and get attention. All around great bird. Hope this helps.