After reading a suggestion here on BYC, I put a small box of sand in the brooder with my 10-day-old chicks. They pecked around at it; seemed to enjoy it. Then I heard a different kind of chirp from one of them - like a rill as opposed to a cheep. Went in to investigate and there was my Light Brahma like a whirling dervish in the sand box! If the photo is blurry it's because she was rolling so fast She went on and on. Finally the Buff Orpington came over to investigate. I'm guessing she'll be the next one in line at the "spa".