I have 12 chickens. 8 are 5mos old, 4 just started laying. I have them in an inside enclosure that they access their coop from. I let them out everyday into a bigger outside enclosure that has a 10' fence. When I am out in the yard they will free roam with me. I have foxes, racoons, hawks so I need to be with them when they are free roaming. Everyday I let them out in the large enclosure. I go back in the evening to lock them up into the small enclosure where they can access their coop. I always have to rake out the door way so I can shut the door because they kick debris back towards the door as if they are trying to mask where they roost. Is this an inherent behavior?