Do chicken instinctively know how to dust bathe themselves? I have a large plastic bin (you know the kind that go under your bed with wheels and lid) full of play sand for my girls to dust bathe in. I take the lid off the sandbox and the first thing they all do is come running and eat the sand? I have only seen one chicken actually doing the dust bath in there. Nobody seems to ever want to get clean? I see my neighbors chickens always playing in their sandbox, but mine never seem to? Is there something I can do to encourage them? Are they squeeky clean chicken and not need cleaning?