I'm building a coop for 6 chickens, and it has 2 nesting boxes. The nesting boxes jut out of the coop and have a slanted lid. To access the eggs, the lid opens on the top by swinging upwards. Has anyone with a similar setup ever had to put latches on the lid so predators don't get in? I've wondered how many racoons have pried the lids open and killed the flock.