Rare show: Lake Annecy becomes a refuge for thousands of migratory birds

Every year, billions of birds from all over the world begin one of the most impressive journeys of the animal kingdom: migration. Depending on the seasons, they travel thousands of kilometres to reach more welcoming land where to reproduce and feed. In Upper Savoie, Lake Annecy sees migratory birds passing twice a year, in early autumn and late winter. Birds flying over the lake at the end of the winter or early spring usually head north towards…