Each birdhouse is handmade and built to order. These pieces of art are cut from the finest quality white birch plywood. Every birdhouse is sealed for a lifetime of outdoor enjoyment. The front of the birdhouses is made with various stained glass and tiles. After the mosaics are finished, they are sealed with a clear epoxy. The outside of the birdhouses is also protected with a clear polyurethane to preserve the paint colors. This also adds a beautiful clear shine.