Well hello from another frozen wisconsinite (sp??)....lol
In the winter I usually have one of those electric dog water dishes that prevents the water from freezing...I use that for the birds...I do how ever also put in other things for water, but they do freeze...ie old roaster, sause pans, pots, etc. etc. I have those in there just to have extra water avaliable, until it freezes that is...but they are easy to get the ice out, cuz I just tip them over and the ice will fall out.
The electric heated water dish I use is one for dogs I believe. It seems to work pretty good for us....We have turkeys, geese, chickens, ducks, and guineas that all drink outta them.
(I actually have 2-3 of them I use in teh winter that don't freeze up, and additional 2-3 containers like the ones listed about--but those ones freeze)
sorry i know I repeated myself in this posts...probably would of been easier to delete and edit than explain myself...lol