If Stevie had more issues then it may be best to end it. Then you also have to see how much time you can devote to have a happy duck. Ans finally its living conditions. Being in a very small group is what this duck has and needs. It knows its surroundings and does not get lost. It looks like it is all in place for Stevie, and animals seem to deal better then many humans do. I guess their lack of comprehension and natural happiness is what makes them go on like nothing is wrong. I have a dog with bad joints. It's a genetic issue and she already had shoulder and knee surgery. She only has pain when she does to much, like going for a hike (which she insists on doing and we restrict it). Normal walking on the property is fine. She does not run, but she does have a happy life. I would not put her down and have her miss out on it. She loves it to much and she loves her dog pack. She will not get old and eventually we have to make the decision, but it is not time for it yet. Our vet said that we will know when, but he thinks she may have a few more years. So yes, she is disabled and you can see by her walk that there is something going on. So putting an animal down is a very personal thing and it really depends on each animal.
