The documentary’s brief synopsis sounds like an unconventional fairy tale – an old hermit and a young girl who can communicate with birds hear the singing of an unknown bird one day and set off into the forest and an abandoned mine to find it. Although the story involves modern recording equipment and microphones, this doesn’t detract from its fairy-tale poeticism. With birdsong at its centre, the film encourages concentrated listening, while at the same time leading us to reflect on the fact that even a sound as ordinary as birdsong has something mysterious about it. 　　“Deep in the forests, the natural world offer itself up in equal proportions to the curiosity of scientists and the passions of poets.” 　　Source: https://www.cinemadureel.org/en/films/7h15-merle-noir-2/