You can make this DIY poultry waterer to provide unfrozen water to your birds all winter. A bucket water, such as this one from Avian Aqua Miser, can be transformed into a heated chicken waterer with a few simple tools and supplies.
I want this! A heated chicken waterer using nipples! Will keep that headache of cleaning the waters at bay...
Heated chicken bucket waterer - Works awesome! -10 below and still not frozen :)
Heat tape on bucket to keep chicken water from freezing
Several ways to keep a poultry nipple waterer from freezing. BTW other poultry, including waterfowl, will drink from this too (though waterfowl still need water to dip their heads and swim in).
Low budget suggestions for winter proofing the chicken coop.
Winter chicken advice re ~ heat, food, water, light More
What a cool idea! I can see this working for a couple of different kinds of small livestock.
I have to make this heated waterer for my chickens and guineas.
Build a Cinder Block Waterer Heater to Keep Your Chooks' Water from Freezing During the Winter!