I've had my first set of girls going on week three. First time chicken owner so I'm learning all their crazy behaviors! Today they started doing something odd. I pulled up a clump of grass for them to snack on. The went crazy and seems to be loving it. I went to check on them and they are all laying near the grass, burrowing down into the pine shavings and rolling around, rubbing in the pine shavings, etc. Sort of how a dog will roll around in something the smell. Do they think they are taking a "dust bath" because some dirt was on the roots of the clump of grass? Is this normal? At first it freaked me out.