Our apx 10-11 week old pekin this morning we noticed was having trouble with balance, falling over (forward, backward and to both sides), limping and not able to keep up (worse than usual) with the rest of the ducks. I was worried about bumblefoot but I've checked both of his feet his feet (twice) and there doesn't appear to be any lesions or areas of heat on either foot. He really had a drunk person appearance, he could stand move okay then he would just sort of fall over a bit when he went to move or stumble. We had supplemented niacin when they were younger but had stopped, I gave some more this morning. He also seems to be getting in his adult feathers on his wings but they aren't smooth and straight. This may be coincidental but I thought I would add it in just in case it is related. Thanks!!!