 Livestock such as cattle and sheep are able to tolerate a wide range of weather conditions, but they appreciate shelter from driving snow and a place to cool off in the heat. Establishing a natural living barn from trees in the woods can offer the protection they need without having to build a covered structure. Brett Chedzoy is a regional extension forester at Cornell University Cooperative Extension. He says living barns can be developed in an existing wooded area or from scratch by planting trees.