So, I am a complete newbie to raising chickens. Although I am very excited, I am finding it to be stressful right now. I am so confused about what ground cover I should use in the run. I read mixed reviews on sand vs. straw vs. pine shavings. I, unfortunately, don't have a flat area in the yard, so we used what we had which was a concrete area off the side of the driveway. We had leftover stall mats that we placed the raised coop with attached run. I am loving the ability to hose them off and clean them easily, but feel they will get bored or not have the true chicken experience without a good ground covering. Although the run has a roof, I am finding the rain still comes through and soaks the run. Any advice?