The Farm Innovators All Seasons Bird Bath with Deck Mount and Feeder (HBI150) is an advanced thermostatically regulated all-season birdbath. This new technology provides heat for birds which is best during winter. Also, this birdbath is built with a perch or feeder in it. While enjoying the heat of the water, birds are also given a chance to dine with the special treat you have prepared for them. The Farm Innovators All Seasons Birdbath w/Deck Mount and Feeder uses an electrical connection to generate heat. To operate, just plug the extension cord into the built-in connection on the bottom side of the unit. For convenience in cleaning, simply twist the basin from the deck mount.