Update: Please disregard. We replaced the straw. Thanks. Despite good advice from BYC posters, and mostly because we had a bale of straw when we opened our new coop last fall, we went ahead and used straw in the floor of the coop. The straw is now fairly moist, despite the presence of a 6' ramp that leads to a dry area just inside the pop hole before the chickens actually hop over a barrier and into the straw on the floor of the coop. The entry area can be observed in the 2nd image below. I could throw some dry-stall in there, if you recommend that, or I could bag it all and replace with pine shavings. What would you have me do please? Replace the straw altogether or dry it out with stall-dry? BTW, you can see in the 3rd photo below the results of our latest series of snow storms here in the north-most end of California.