I have a kiddie plastic swimming pool for my ducks to swim in their pen. I have about come to the conclusion, I am going to have to build a ramp for them to get out of the pool (I do have a ramp for them to get in) has anyone had this happen to them before? do you think it drowned and couldn't get out? Can ducks drown??? is it possible for it being a disease that I am not aware of? any info appreciated.