In the past, I've seen a few rats and I actually killed a snake trying to get into the coop a few months back. I moved the food farther away from the coop to discourage the rats (and hopefully not tempt the snakes). I also no longer throw food scraps in the chicken yard. I haven't seen any critters in a while. Now, here is what's happening... To encourage my (5) girls to lay (and I'd heard that this is a way to kill snakes), I have placed a few fake eggs in a few of the nests (inside the coop). Almost everyday, at least one of the fake eggs has been moved to a different nest. I know these hens aren't picking them up and moving. What could be moving these eggs around?