Year: 1999Publication Type: Journal Article - Multi-AuthorJournal Volume: 105Page Range: 2010-2019Article/Chapter Title: Effects of deafening on the calls and warble song of adult budgerigars (Melopsittacus undulatus.)Journal Name: Journal of the Acousical Society of AmericaAuthor(s) from ICR Staff: Susan Farabaugh, Ph.D.Author Name/Init: Author Surname: HeatonAuthor Initials: J.T. Author Surname: DoolingAuthor Initials: R.J. Author Surname: FarabaughAuthor Initials: S.M.