I have a duck who seems to have one of his feet fold under as he walks. does not happen all the time. I have looked at it for bumble foot but have not found anything. I was thinking if I could get some duck shoes (as I remember someone made shoes to see--I think, it has been awile). And my online searches have not been very productive. any other suggestions on what might be wrong? I can bring him in my house for the winter if necessary, until warmer weather when I can use the smaller "hospital yard" (I ducks with bumble foot and my two house ducks out there so they have a small area to roam in to rest leg injuries).