I've never kept ducks past a few weeks of age, but I know they are very messy compared to chickens and turkeys. I use heated dog water bowls to great effect with all our poultry, but I'm not sure if/how they would work with ducks. The idea of breaking out "ice pucks" and filling bowls every day is the main thing keeping me from getting a group of BEI's that a friend has offered to give me. Could I build a box around the water bowl, sized to allow them to get their heads in, but not the rest of their bodies? Would that be ok, or cruel to prevent them from getting into the water like ducks want to do? I would give them a larger swimming container when the weather permits, after all, half the fun of ducks is watching them splash and swim. Will BEI's fly or jump up to a shelter that is about 8 inches off the ground? Should I make a ramp? Will they have the sense to get into the shelter in bad weather?