I know this probably belongs in the duck thread, but I'm more likely to have someone see it here quicker. I have a 1-1/2 year old Cayuga duck hen that was fine yesterday but today is acting lethargic, limping a bit, and has watery diarrhea. She also seems to have lost a little bit of weight. She's not interested in eating much but she snarfed mealworms this morning. What can I do to help her give the best chance of getting through whatever's going on?