I just wanted to mention that this works for chickens. A re-purposed spill proof water bowl for dogs. It's a bit up off the floor, but so far they don't seem that interested in perching on it, so bedding contamination is less, but I still had to clean it out some this morning. My long term plan is to get a second one so I can bring a clean one from inside and swap it out. That would make an easier maintenance run, I think.