Life and Wildlife along the Little Buffalo River

I put out, last year, with the help of a friend, electric heater elements in our water bird baths; using as GFI for safety. The Eastern bluebirds are drinking and bathing every day (some times 20-30 per day); all other feeder birds drink continuously in this cold dry air. They act almost frantic for water, so, please try to help them. The river is not far from me but they use little energy to drink cool water close by. This bluebird was drinking yesterday at 9 AM at a temperature of 9F. See the frost on the ground behind him.