The Secret Routes for Migratory Birds

Migratory birds are in decline. Ornithologist Christian Moullec hatches and raises greylag geese, then flies beside them in his ultralight to create a “migration school.”

For thousands of years, France has been a crossroads for millions of migratory birds that pass through the country and stop there along their journey — heading south in autumn, north in spring. Yet in recent years, we have witnessed a decline in these great travelers. Have human activities altered their bearings? Are they finding it harder to adapt to a world that has changed so dramatically? Christian Moullec and his geese chart a new route across modern landscapes, hoping these birds will learn - and pass on - a way to survive in a changing world.