The Tarn, Jonte, and Causses Gorges are among the major sites in Occitania. Nineteen municipalities share a territory of 49,421 acres (20,000 ha) whose preservation is under close surveillance. In addition to their historical heritage, the villages are subject to specific conservation standards. The Tarn and Jonte Gorges are listed as exceptional sites for their flora, such as lady's slippers (Cypripedioideae), which are found in abundance. Within a listed area, the Natura 2000 network also protects a great diversity of birds, such as the ortolan bunting, the short-toed eagle, and three species of vultures.