My Maggie May seems just fine but when she walks you can hear a click. Left leg. She doesn't hobble or limp. She spends most of her time on the pond. I have 13 other ducks and only Maggie has a leg that clicks. Does anyone know what that could be? Should I do anything? I assumed the best thing for her was to be on the pond so I walked her to the pond today and released her rather than letting her walk all the way to the pond. Thanks!