How do you prevent them from pooping in the nesting boxes. I have 9 pullets and 1 hen. Their roosts are above their nesting boxes. It's not terribly bad in the boxes but enough to ask for help! I know they aren't sleeping in them. I always see them sleeping on the roosts. I noticed more pullets are checking out the boxes and attempting to kick out the shavings. I have 6 pullets are at the POL and 1 hen so I don't want to close them off. Will they eventually stop...what can I do?