Well, it's wintery here now, and that means that every night I remove their water and replace it in the AM. I tried leaving it in there, but it freezes solid. Anyhow...this is working out okay now as I am out there when they are still on their roosts, so they don't miss it too much. BUT, I really want to get a light out there, which means they will be awake 4 hours before I come out there with the water. Does anyone else do this? I am trying to find a way to heat their water without using a 12V or electrical, which is out of the question. So far, no good solution, so I need to remove and replace, and I am wondering if you can do this if they are waking up before you do? Help? I hate this weather.