I spent a lot of time with my ducks until recently. My schedule gets me out the door at sunrise and I'm not back for at least 12 hours. I heard they've developed the bad habit of swimming in the pool instead of Lake. Usually I come home and they're in bed (greenhouse) and I close the door. Three times this week they were by the pool hours after sunset (unusual). I read on a other post about ducks that stay outside and sleep on water. I'm no expert on raccoon or foxes etc. I'm really just not gonna be around enough for a couple weeks to influence behavior. Are they safe or semi safe by being able to transition from land to water?