I put a small (1-2 in) diameter branch held off the floor at one end by a 3 inch piece of 2x4 in the brooder when the chicks were 1 week old. They could jump on the end laying on the floor and work their way up to the 3" high section. As they grew, I made a 2x4 mini roost about 2' long and held up about 6-8 inches off the floor. My 3 week old Dom, Astrolorp, BO, and Jersey all love to play on it. They still sleep on the shavings, altho one practiced sleeping on the roost while the others cuddled on the floor during nap time yesterday afternoon!