Ok, I know that ducks and geese drink a lot and sometimes their poo comes out runny. But the last few days I've notices that my goose's poo is always watery, sometimes completely liquid. In every other way she is acting normal. I am feeding a mix of purina flock raiser and manna pro game bird; also nutritional yeast once a day, and ground up greens (cabbage, kale, parsley, spinach) and she usually gets to go out to graze at least once every other day for a while. I mix grit in their food as well. Oh, she is just a baby, by the way, about 4-5 weeks old. All the ducks she is with have normal, solid poo. Should I be worried? Is something wrong?