1) How deep do you plan to have pine shavings if you;re using the deep litter method through the winter? 2) What do you do to keep the chickens from kicking tons of pine shavings out of their coop? Do you just have to keep replacing pine shavings all the time? We have a pop door that is left open all the time, with the door going into a fully enclosed and secure run. Problem is -- chickens are kicking lots of the pine shavings out into the run.