Good luck with your poultry raising adventures, and I hope you find everything you need to know. Don't forget to take a look at BYC's very useful learning center (If you haven't already)! The learning center as well as the forum should answer your questions! There is always something new to learn! Glad to have you here! See you around with the flock. BTW, sand could work depending on the size of it.
Hello and Welcome To BYC! The coarser sand which has small pebbles in it, sometimes called builders sand etc, will work, the washed fine white powdery sand sometimes called something like play sand probably won't.