Abstract: A wind instrument that can be used to replicate the calls of birds and animals particularly including the common loon. An instrument having the type of mouthpiece used on a recorder and an elongate body having a bore has an baffle within the bore that closes only a portion of the bore. With the baffle at at least one location in the bore, significant changes can be made in the pitch of the sound being made to replicate calls without movement of the baffle along the bore. The baffle can be fixed and the instrument used to replicate the wail of the common loon, or can be movable so that all of the primary calls of the common loon can be replicated.