Our weather is getting wetter and colder. My large chickens are mostly free-ranged (in a very large fenced-in backyard), so mucky feet is not such a problem. But my Silkies are kept in a smaller cooped in area (for their protection). At there any tips for keeping it as dry as possible? Adding pea gravel to their run (would that work? would that be crazy?)? I've thought about tarping it, but not sure if that would work either or just make it gloomy. So, tips for the cleanest driest run to keep the ornamental birds looking their best?