Doris, our mallard, has very runny poo - almost always liquid as opposed to the expected solid consistency. No experience with ducks. Rescued when abandoned as a 2 day old chick now approaching 12 months.Happily co habiting with two labradors! Watches telly and baths in the kitchen sink of an evening. Vet has not been much help. Can anyone offer some advice? Eats standard duck food, dried mealworms, lettuce and loves worming in the garden so diet varied. Spends day on her own pond. Thanks.