I have seen that some people use a heated dog/rabbit dish. http://www.ebay.com/itm/1qt-RABBIT-...866?pt=LH_DefaultDomain_0&hash=item1e60aebf5a
I was thinking of trying it this year. Last year I gave them fresh water in the morning and when they're water froze they would have fresh snow in a tub for the rest of the day.
I was thinking of trying it this year. Last year I gave them fresh water in the morning and when they're water froze they would have fresh snow in a tub for the rest of the day.