" Already, boar are being killed here by the Forestry Commission and other owners at rates that could wipe them out. Among the commission’s justifications is that they cause ‘substantial damage’ to woodlands.17 What does this mean? The notion of damage to native ecosystems by a native species at numbers well below its natural population is nonsensical. What the Forestry Commission calls damage a biologist calls natural processes. "

― George Monbiot , Feral: Rewilding the Land, the Sea and Human Life