In the past, the peat bogs were used to graze sheep; with the agricultural decline linked to the rural exodus, these areas have been abandoned. Today, the Conservatoire des Espaces Naturels du Limousin has reintroduced Limousin sheep on these plots in order to maintain the callunes. Callune is a perennial plant that measures between 20 and 50 cm in height. Despite its similarity to heather, these two plants are very different.