My chickens seem to prefer the water that runs out when I water the tree in the run, which is all over the muddy poopy ground. They eat dirt that they've pooped in and don't seem to mind eating bugs which I wouldn't eat. Our other animals are the same way. I give the cat fresh water in a scrubbed bowl and he goes and drinks from an upturned toy that has dirt in the bottom of it and a little tiny bit of warm water. I give the dog fresh water and she likes drinking from the puddles in the driveway instead. I don't think our animals worry about it as much as we do. lol