A recurring challenge every winter in Iowa is keeping the water you use from freezing. Keeping water thawed requires adequate heat to keep the temperature of the water above freezing. The three most common approaches are adding heat with a heating device, insulating to conserve heat, and adding heat by bringing in warmer water.
There seem to be no limits to the creative capacity of nature lovers, so one can find design specifications for structures for anything from a turtle to an osprey. Many different shapes, sizes, and designs are available for ‘bird houses’. Boxes for secondary cavity nesters also come in all shapes and sizes to target dozens of species in Iowa.