I am new to all of this (don't even have my chicks yet). I am designing a coop with a covered outside run on dirt. I am assuming chickens poop anywhere and everywhere. Will I need to clean the poop off the dirt? Does the poop smell? Is placing a layer of sand or any covering recommended? I will be trying the deep litter method inside the covered part of the coop, and I think I have a good understanding of that. I'm just not sure about the outside part. We will have 3-4 chickens in about a 40 square foot run. Thanks for helping a clueless newbie!