Silly question, but my coop is in a shady, grassy area. I saw my pullets today under it having a "dust bath" in the grass. Should I put a shallow box out tote with soil there so they have actual dust, or just give them time to kill the grass? We are planning on moving the little cop every couple weeks. I've only had them two days, not quite sure what I'm doing. Yes, my profile says 8 years, long story, but these are my first chickens, just took me a while to get here. 
