References
- Mayr, Ernst American Museum Novitatea, no. 489, 1931.
- Mathews, G. M. The Birds of Australia, Supp. no. 1–3, p. 208, 1920.
- Mathews, G. M. The Birds of Australia, vol. XII, p. 208, 1925–27.
- MacGillivray, W. D. K. The Emu, vol. 17, pt. 2, p. 73, 1917.
- Mayr, Ernst, and A. L. Rand. Results of the Archbold Expeditions, 14, p. 246, 1937.
- Kershaw, J. A. The Emu, vol. 18, pt. 1, p. 1, 1918.
- Mathews, G. M. Aust. Avian Record, vol. II, no. 5, p. 103, 1913.
- De Vis, C. W. The Ibis, vol. 3, 7th ser., p. 389, 1897.