A. CWF generally advises against using a heated bird-bath. Birds see open water as a cue that it’s mild enough to bathe. In our very cold winters, this can be fatal to birds. Once birds are wet, the water quickly freezes on their feet, legs, and feathers. Canadian birds have adapted to getting their water from snow and ice and will manage without an added source. This viewpoint is based on significant anecdotal evidence from ornithological experts.