Flight of the Storks (2013)

Original title: Le Vol des cigognes

Jonathan, a young academic teams up with Max, an amateur ornithologist, to follow storks on their migration from Switzerland to Africa. When Max is found dead in mysterious circumstances, Jonathan decides to make the trip alone. Following the route of the birds, Jonathan discovers dark secrets surrounding Max’s death. A mesmeric thriller from literary luminary Jean-Cristophe Grange.