My ducklings and goslings arrived yesterday. The smaller of the bunch seems off. They were all running and playing but today it is less interested and seems sleepier. It cuddles when you hold it but it’s eyes don’t seem to open all the way at first. I decided to make sure it was at least getting electrolyte water so I poured in a separate dish and took it making it drink. So my concern is what do I do? How can I help it? What could be wrong with it?