I have a rubbermaid horse trough that is about 4 feet long, 3 feet wide and 3 feet deep. The horse doesn't use it anymore and I was thinking about using it for the ducks and or geese to bathe in. I was thinking of building up the sides and making a ramp for them to get into. But could they get OUT of it is my concern. I also have a 10 foot round galvanized metal one I was thinking of doing the same thing with. I just am worried that they can't get out. Does anyone use something similar for your ducks or geese?