“Using the recordings of more than 50 ornithologists, Jean C. Roché has been able to bring together in one set of CDs, 396 songs and calls of west European birds. As an editor of sound guides to species and natural landscapes, Fémeaux & Associés has brought together many other wildlife sound editors to produce a first ecosystem sound catalogue. This 4 CD boxed set which includes a 52 page booklet, a scientific reference, constitutes a permanent record of the sounds of the living world and acoustic biodiversity, of both ecological and teaching use.”