My mom has a large round livestock water trough that is in the goat pen, I haven't been using it because it's to large for the goats. So I was thinking about bringing it home and filling it for the ducks, but one worry. I had some chickens in the goat pen at one time and had a few roosters end up in the trough drownd, never the hens only roosters. So if I put in a ramp (I would anyway so the ducks could get in and out), do you think the chickens would be smart enough to find it and get out? Or would they just drowned?