Two weeks ago our local rescue sanctuary call me to ask if I would take on an adult Pekin duck that had physical developmental issues from malnutrition. (He has the typical look of a physically deformed duck due to malnutrition- legs and hips out to the side instead of beneath him and the typical "angle" wings). When they got him, they put him in a cage with next to no chance to get out or move around for four weeks. They were going to put him down if I couldn't take the poor little guy. When I got him and took him home he was completely pitiful. It was heartbreaking to watch him as he struggled to even move, but his little legs were so bad that they couldn't even support his weight. And he used his little deformed wings to try and drag himself across the ground. He mostly just flopped about in a panic unable to really move at all. At first my other two ducks (also Pekin) attacked him, but after about 6 hours they came to accept him and now won't leave far from his side (which is great!) I have been trying to work with him, massaging his legs, getting him to exercise them in the little kiddie pool to see if i can get any muscle back and some mobility. I am also supplementing his diet with B vitamins and niacin. I was so happy to see him progress! He can now support his weight and can even take three or four steps before his left leg and hips give out and he stumbles to the ground. He eats well and the other ducks seem to have become attached and protective of him. But, lately (in the last few days) I can hear his hips pop when I pick him up and when he sit on my lap and moves his legs. Plus, he has been panting a lot even though the weather has been very nice and cool in the shade where he hangs out. I'm worried that he is painting because he is in pain. And, though the work I have been doing with him seemed to help, I'm now worried that it might be detrimental to him. I was hoping you guys could let me know what you think and offer any advice as how to make his life the best possible. He's such a great little guy and a real fighter.