The Burns family have a diversified farm about two hours outside of Pittsburgh. They grow fruits and vegetables, but dedicate an increasingly larger portion of their land to grass, which feeds their cows, sheep, pigs and chickens. Pete Burns, who initiated the transition to more animal-based farming, apprenticed with Joel Salatin on Polyface Farm and brought many of the practices back to Heritage Farm. They focus on keeping a healthy pasture, which feeds the cows and sheep as they are rotated through small paddocks. The chickens follow the cows and sheep in the paddock to manage unwanted pests. The pigs make compost in the barns and root through the dirt, managing undesirable plants and pests.