Hi all, After talking to the woman at the local poultry supply store, I bought a heated dog bowl to use for our coop. Last week I switched to using that (instead of our galvanized waterer). I'm already seeing some problems with it and things I don't like--chiefly that it's really easy for my Polish top hat to get her head feathers wet, which makes me worry about her on cold nights. But it also needs to be totally dumped almost daily, because it gets totally full of straw. Pretty sure the girls don't care if they poop in it, either. So I'm wondering what people prefer? I saw a bunch of options on Amazon, ranging from $15-$70. I'd like something I can use with what we have already... ETA: this is a small suburban flock. 4 hens and a small coop.