I've had this Pekin duck for 7+ years since 2015 as a family pet. He lives in my backyard and has lived alone ever since his other ducks had died. I think he developed bumblefoot in about 2017 but since I was a naive child I didn't understand what it was until it got worse. When I finally realised what his condition was it was too bad to treat at home so I asked my parents to take him to the vet, but they refused to saying that it was too expensive. If I knew that they were unwilling to treat him humanely I wouldn't of ever agreed to keep a duck as a pet. So to this day he has had bumble foot which surprisingly hasn't caused him to limp but seeing how good birds are at hiding their illnesses I wouldn't be surprised. Recently, I noticed a growth above his foot which started out as a black lump but after a few days it has turned into a red larger lump, he has started limping but he is currently still eating, drinking, swimming and preening. I feel really guilty keeping him in such pain for such a long time but does anyone have any clue to what it is and any home treatments? I would really really appreciate it. I am currently soaking his foot in Epson salt.