Hi! I'm looking for some advice. We have a covered run and let our chickens free range in the yard at least a few hours a day. We moved our girls outside a couple months ago and didn't do anything special to the run floor. It didn't take long for the grass to turn to mud. What I'm wondering is what I can put down to help with this. We're thinking maybe sand, gravel or mulch? There is only about 6 inches or so of dirt before it hits gravel anyway. What would be our best option? I live in a very humid and wet climate so it's always muddy and never fully dry even though it's covered. Thanks for your help!