We just got 4 ducks at our preschool and our white pekin started limping on Sunday and is now not standing or walking at all and her leg has become swollen and warm to the touch. I have read a lot of different things and am unsure what it could be and don't want to keep taking shots in the dark with treatments. The picture of her standing was taken on Monday evening and the up close picture of her joint was taken yesterday. Don't know if the mark on her joint is a cut or just different coloring of skin. The kids at our preschool are very concerned and we want to get her better asap. Thanks for any help!!!