I am putting the finishing touches on my first ever chicken coop! I can't wait for my ladies to arrive but I worry about the maintenance of my coop/run. This summer we had lots of rain here in south west florida and the run occasionally flooded about a quarter of an inch. I have added about an inch of old driveway pebbles to the run and my question is what if anything should I add on top of that? Sand? Straw? Soil? ?? Leave the pebbles? I'll have around 5-7 birds and I'm planning on using shavings in the coop area...does this sound good? Any and all advice is greatly appreciated!!