I am in the design stage of an duck coop for my runner ducks. So far I have the basic plan with a covered run and coop that has a door that I can open (when I am around) so that they have access to my pond. The pond is about 27 feet long by 24 wide. After looking at another post I was wondering if it would be good to put a small floating house that they could scurry into if danger came while they were swimming. I figured it could be in the middle of the pond and just big enough to fit them and provide quick cover like a bolt hole. Is this a good idea or unnecessary. I have cooper hawks and a few cats that sometimes come around and although I have heard that the runner ducks are good at spotting predators I would rather not loose any if possible. Any comments or criticism is welcome as I am a newbie to this whole duck thing.