I had some ducks last year in a 20'x30' pen attached to a 7'x7'shed. When the ground froze I moved my over crowded rabbits into it since it was vacant and spacious. I have found a nice market for the rabbits and want to continue with them. I've read that chickens happily consume rabbit pop and some pen chicken under wire pens with rabbits for that reason. I was thinking of adding a few chickens for eggs, but haven't come across anyone who keeps them all togather. I really perfer keeping ducks but I'm not sure if the ducks would enjoy the rabbit droppings as much. Of course I am not expecting them to keep it clean, I understand I still have to maintain a clean pen. Does anyone have any ideas or even partial ideas????