Tignall has one or more farms and/or ranches. These are areas of land devoted to agriculture, grazing for livestock and related occupations. The sum total of the land and the buildings that stand on it are known as the farmstead. The crops grown can be either foodcrops or cash crops. While food production is the basic function of farming, cash crops are used in production of fabric, animal feed and increasingly significantly, fuel. Major crops include corn, soybean, hay, cotton, rice and wheat. The work is usually accomplished by usage of machinery, or by manual labour. Migrant labour forms the major workforce at farms. Seeds, pesticides, fertilizers, irrigation and other special factors may be needed for agriculture. Buildings in the farmstead may include a farm house (the residence of the farmer and his family), a silo for storing grain, and a barn for the livestock. Ranches in Tignall have grazing lands for livestock such as cattle or sheep. These are raised for their meat or wool. Less common animals raised at ranches include elk, American bison or even ostrich, emu, and alpacas.