I use those fortex rubber pig feed bowls you get at tractor supply. Fill them up. When the water freezes, I just take a rubber mallet ( or stomp on the bottom of the bowl) turn the bowl over, bang out the ice, and refill it up. These work the best, since its really easy to get the ice out. They dont need heated water. I have had call ducks for several years, and never used a water heater.
Give the call ducks some whole corn in their feed, as it creats heat during digestion. Also, make sure you have a draft free shelter filled with lots of straw for bedding. The ducks will nestle down in the straw and keep warm. Straw is hollow so the straw absorbs the ducks heat and holds it in, keeping them warmer than hay.
Give the call ducks some whole corn in their feed, as it creats heat during digestion. Also, make sure you have a draft free shelter filled with lots of straw for bedding. The ducks will nestle down in the straw and keep warm. Straw is hollow so the straw absorbs the ducks heat and holds it in, keeping them warmer than hay.