I have a duckling that I dont think is going to make it. It hatched under a chicken and we left it with the chook until we found out the chook had mites. We dusted the flock and put a little on the duckling and gave it a swim and it now appears to be mite free. This was a few days ago and overnight it has become really lethargic and sick. Its head is convulsing a bit like hiccups, or when ducks are trying to swallow food, it cant walk well, is really sleepy and drinking quite a bit of water. I havent kept it with the chicken since the mites and it now has its own little box. The only likely cause of these symptoms I could find on google was hepatitis. I dont think the duckling is going to make it at the rate its deteriorating, but if anyone could give advice as to what could be wrong and how it would be prevented, that would be much appreciated.