M Morel Bird CallsThese American Robin bird calls are extremely accurate and take years to develop and are the creation of Monsieur Morel who has been making calls since he was a child in the mountains of southern France. Your call will allow you to learn to recognize birds by their song, to communicate with them, to discover, observe and love them this, according to M. Morel, is without doubt a first step in understanding the secret of happiness.