The goal of the brooder is to simulate the environment that would normally be present for chicks after hatching. In other words, the brooder keeps your chicks safe, warm, fed and watered.  Big picture, your brooder should: Be free from drafts but have good ventilation to prevent ammonia build-up Prevent rodents and predators from access  Warm and cozy Have access to proper feed and clean water Have bedding like rice hulls or wood shavings    Here are a few other handy brooder hints: Brooder Space Set up your brooder space as a ring with approximately 0.5-1.0 square feet per chick.