We had to put down one of the goslings.
They've all been quite clumsy and falling over sometimes, but this one was much worse and getting worse every day. Once on its back, it wouldn't be able to stand up without help. This morning it couldn't stay standing and wasn't eating or drinking. By now it was half the size of the others and clearly suffering.
We've been dreading to be in this situation but figured it was going to come sooner or later. A quick and humane death seemed the best care we could offer at this point. ☹️