Recently our drake has been limping pretty badly.
He flaps his wings as he moves; I assume to help alleviate the weight on his joints.
He sits down most of the day in a stumbling fashion.
His *knees* are swollen and very warm.
I've taken several photos in an attempt to help get a diagnosis and help him recover.
Thanks for your help.
Full album of photos here: http://imgur.com/a/Uew86