Birds love ground baths! They simulate the most natural setting for birds to bathe and drink. Our ground bath is thermostatically controlled and has a 60-watt, heated dish to maintain open water all winter longâ€"to temperatures as low as -20 degrees! The four-legged steel base is rust resistant and the black-resin insert dish is removable for easy cleaning. 14 inches diameter, 5 inches tall. 60 watts, 6 inch cord--you supply an outdoor-rated extension cord long enough to reach your outdoor electrical outlet.