I have a gosling who just hatched, all on his own, very enthusiastically at that, and he still has around a pea-sized amount of yolk remaining. It's very small, but it's a little dry and doesn't seem to be absorbing anymore. What should I do? As it's so small, what are his chances? I put some polysporin on the area as I usually do just with their navels. Never had this happen before. Will it just dry up, or is it likely to get infected? Thank you!