Betty is a wild mallard who suffers from severe arthritis. This is not an uncommon problem for ducks, and treatment normally entails having an orthotic put on the leg to straighten it out. However after two unsuccesful treatments, Betty is still unable to stretch out her leg, and instead hops around on her left foot.
Betty can still swim, fly, and has even successfully raised ducklings, and while she is free to go whenever she likes, she seems to prefer the sanctuary and the extra special care she gets here.
