A duck house is a floating structure which they can climb onto.This could be A duck house, duck canopy, or duck island.Some are simple wooden shelters on land, while others are on islands in duck ponds or lakes.Such houses are also used for the birds to nest in a safe and convenient area. you should clean it out about every month to prevent the unwanted and rather smelly build up of any fecal matter (guano) that is gradually left behind by the birds using it. They may also be prone to flooding during a storm, if they are not raised adequately off the ground. to your right is a duck house.