Witches certainly existed in Tiurana, a small municipality in the far east of Noguera, bordering the borders with Alt Urgell. This is confirmed by its own toponymy, which has identified the town for decades.Witches' era, a place very close to the hermitage of Sant Ermengol. In this era, experts say, one can find a wide variety of medicinal plants, the same ones that wise women used in ancient times to prepare their medicines.

Sergi stands atop a wooden tower from where he can see almost the entire Llobregat Delta. However, he never takes his eyes off the binoculars he wears around his neck, which he uses to inspect the area. He joined the Rural Agents less than three years ago, and one of his tasks is to monitor this area, declared a natural interest site near El Prat Airport.