Stoneware is naturally resilient with our handmade bird houses providing year-round enjoyment in almost any environment and standing up to frosts and freezes. Please ensure birdhouses are hung in a cool spot. Direct sunlight on any birdhouse can elevate the inside temperature to dangerous levels for our young friends. As with any stoneware item, extreme and sudden variations in temperature may cause cracking or breakage. Stoneware birdhouses clean-up easy with a garden hose.