82-year-old Willem bought a remote potato farm field back in 1980 and transformed it into a butterfly paradise. For almost 40 years, he has worked the land with shovel and scythe in order to preserve the butterflies. Willem’s paradise has become one of the most important habitats in the region for these fluttering beauties. But Willem has a problem. Due to an overload of nitrogen in the air, Willem’s flower-rich butterfly paradise gets slowly driven away by a monoculture of grass. Butterflies that used to be common just a few decades ago are rare these days or have completely disappeared.