I'm trying to figure out what could be wrong with my duck's leg and if she will heal on her own. She is about a year old. I noticed last week that she was limping, favoring one leg. This lasted for a day or two, and I kept her in the pen so she wouldn't make it worse by running around in the yard. But then on the third day she couldn't walk at all, or even stand up on one leg. I'm assuming over-use of her good leg caused this. She stayed like this for about two days, but then started using her good leg again. Now she can get around with a pathetic hobble/hopping motion, using mostly just her good leg and putting very little if any weight on her bad one. This is an improvement from the last few days, but still worse than those first two days when she was just limping. In the last couple days, she has improved to where she will put some weight on her bad leg if she's standing still. She mostly stays up on her "toes," or forefront of the foot when she puts the weight on it. Sometimes she will relax the foot and put the "heel" down as well. Visually, I can see nothing wrong with her leg, foot, or bottom of her foot. My thought has been that since she was only limping at first, and then it got worse, and now starting to improve again, that it's probably just a sprain, since I don't think a break or something more serious would progress in this way. However, it's going on at least a week now, which is the longest I've ever had a duck who had a limping problem of any kind. Any thoughts on this? Thanks!