My chickens keep pushing all the shavings out into the run. there are barely any shavings in there anymore and I'm trying to do the deep litter method but it'll never be deep! They keep shoving them out into the run! grr!!! Anyone else have this issue? what did you do to remedy it? would it work to put a little ledge in front of the run door? or are they going to shove them out and over the ledge anyways?