So we are building a coop and run and are trying to decide what to do with our run floor. It will be 16'x36' with an 12'x16' covered section. We live in Portland, Oregon, so it rains a lot. We are also wanting to keep smell to a minimum so easy cleaning would be nice. A lot of people seem to like sand but I have heard just as many negative things about it, such as a concern for disease and that it may not work well with all the rain we get. Decomposed granite or pea gravel? I assume we can't get away with sectioning off the run, rotating them and replanting? Not enough space? So assuming that, what do we put down? We are up for using two different materials as well. Say maybe something for dust bathing under the covered area and a foraging area in open space? We are newbies here so thanks fo any input!