Watching the Deer Rut

At the end of summer, the Serra da Lousã changes its voice. In Castanheira de Pera, as the days begin to shorten and autumn draws near, the mountain is taken over by the deep, powerful sound of the deer. It's rutting season, when the males emit intense calls to mark territory and attract females, creating one of the most impressive wildlife-watching moments in the Serra da Lousã. On 19 and 20 September 2026, the Doze Meses, Doze Caminhadas initiative invites you to experience this…