We just got started with chickens and just love it! They grow so fast, and are really all becoming sweeties (or they just know I am the Bringer Of Treats). Our partridge cochin All 7 weekers in their dusty box. I mixed screened topsoil, sand, and some DE. They love to roll in it and nap in it. There is a buff orpington, the partridge cochin, 2 black autralorps, and one barred plymouth rock. Our 4 5 weekers, a blue cochin, a splash cochin, and 2 more black australorps. BTW, I would love to let them out in the yard, but I'm so afraid they won't come back to their run/coop! How old should they be before I try this?