REFERENCES
- BLAKERS, M., S.J.J.F. DAVIES, & P.N. REILLY. 1984. The Atlas of Australian Birds. Melbourne: Melb. Univ. Press, RAOU.
- FORD, J. 1979. Speciation or subspeciation in the Yellow Robin. Emu 79: 103–106.
- FRITH, H.J. Birds of the Australian High Country. 1969. Sydney: A.H. and A.W. Reed.
- GALL, B.C., & N.W. LONGMORE. 1978. Avifauna of the Thredbo Valley, Kosciusko National Park. Emu 78: 189–196.
- GREENEWALT, C.H. 1968. Bird song—Acoustics and Physiology. Washington, D.C.: Smithsonian Institution Press.
- HUTSON, G.D. 1968. Song Variation in four species of Pachycephala. B.Sc. Hons. Thesis, Department of Zoology, Monash University.
- JELLIS, R. 1977. Bird sounds and their meaning. London: BBC.
- JACKSON, S.W. 1921. Second trip to the Macpherson Range, south-east Queensland. Emu 20: 195–206.
- MUNDINGER, P.C. 1982. Microgeographic and macro- geographic variation acquired vocalizations of birds. In Acoustic Communication in Birds. Kroodsma D.E. & E.H. Miller (Eds.). Acad. Press., London. Vol. 2, 147–200.
- ROBINSON, F.N., & A.H. ROBINSON. 1970. Regional Variation in the Acoustic Signals of the Musk Duck, Bizura lobata. CSIRO Wildl. Res. 15: 73–78.
- THORPE, W.H. 1961. Bird-Song. Cambridge: Cambridge Univ. Press.
- WATSON, M. 1969. Significance of antiphonal song in the Eastern Whipbird Psophodes olivaceus. Behaviour 35: 157–178.
- WOOLLER, R.D., & J.S. BRADLEY. 1979. Consistent individuality in the calls of the Spinifex Birds Eremiornis carteri on Barrow Island. Emu 81: 40.
- ZANN, R.A. 1976. Variation in the songs of three species of Estrildine Grassfinches. Emu 76: 97–108.