I let out my two ducks, Mordecai and Rigby, this morning into their yard before I went to school today. The gardeners had come, so my mom put them back and didn't let them back out. When I got home, I let them out of the coop and noticed that Rigby, my black swedish, was completely off balance. He started wobbling and tilting back on his feet. He also fell over a couple of times. My mom checked his feet while I held him and said she did not see any redness or anything swollen, so I do not think bumble foot, but it was getting dark already so I will check myself tomorrow to be sure. Any other ideas on what it could be. There is also a slight slope in their at one end so he could have possibly fallen down the slope at some point in the day and hurt himself, but I think my mom would have noticed. He was ok this morning too, so whatever is wrong has happened extremely recently. Any hell with this is greatly appreciated.