The rain we've had the last few days caused the stream to rise a bit yesterday. It also caused some trash to make its way downstream. I came home yesterday afternoon to a duck with a length of string wrapped tightly around her leg and tangled up with two saplings. I had to climb to the other side of the stream and cut the saplings to get her out. The string was so tight on her leg I couldn't get my knife under it and ended up using nail clippers to remove and untangle the mess. Last night she seemed okay, though she was limping a little, probably from having her leg tied back for as long as it was. She was still limping this AM and I noticed that she's now swollen as well (overall, her leg looks worse than it did yesterday, but I'm not sure how much of that is because I have better lighting and can see so much more of it.) I kept her in the coop today, with a bowl of food and some water. She may have laid an egg this AM.. that's not clear though. She has limited mobility of the leg, but doesn't put much weight on it. I felt for any breaks yesterday, but couldn't feel anything. I'm terrible at first aid. What should I do between now and getting her to a vet..