Thambetochen chauliodous Olson & Wetmore, 1976:252

Maui Nui moa-nalo



Taxonomy & Nomenclature



Conservation Status


Last record: Holocene



Maui & Molokai, Hawaiian Islands, USA


Biology & Ecology










Original scientific description:

Olson, Storrs L. and Wetmore, Alexander. (1976). Preliminary diagnoses of two extraordinary new genera of birds from Pleistocene deposits in the Hawaiian Islands. Proceedings of the Biological Society of Washignton 89(18): 247-258.


Other references:

Hume, Julian Pender and Walters, Michael. (2012). Extinct Birds. London: T & AD Poyser.

Iwaniuk, Andrew N. et al. (2004). A comparative test of the correlated evolution of flightlessness and relative brain size in birds. J. Zool, Land. 263: 317-327.

James, Helen F. and Burney, David A. (1997). The Diet and Ecology of Hawaii's Extinct Flightless Waterfowl: Evidence from Coprolites. Biological Journal of the Linnean Society 62(2): 279-297.

Kolb MJ (1994) Ritual activity and chieK y economy at an upland religious site on Maui, Hawai’i. Journal of Field Archaeology 21, 417–436.

Olson, Storrs L. and James, Helen F. (1991). Descriptions of thirty-two new species of birds from the Hawaiian Islands: Part I. Non-Passeriformes. Ornithological Monographs, No. 45: 1-88.

Sayol, Ferran, Steinbauer, Manuel J., Blackburn, Tim M., Antonelli, Alexandre and Faurby, Søren. (2020). Anthropogenic extinctions conceal widespread evolution of flightlessness in birds. Science Advances 6(49): eabb6095. [Supplementary Material (Data File S1)]

Sorenson, Michael D. et al. (1999). Relationships of the extinct moa-nalos, flightless Hawaiian waterfowl, based on ancient DNA. Proc. R. Soc. Lond. B 266: 2187-2193.

Stearns, Harold T. (1973). Geologic setting of the fossil goose bones found on Molokai Island, Hawaii. Occasional Papers, Bernice P. Bishop Museum 24(10): 155-163.

Turvey, Samuel T. (2009). In the shadow of the megafauna: prehistoric mammal and bird extinctions across the Holocene, pp. 17-39. In: Turvey, Samuel T. (ed.). Holocene Extinctions. New York: Oxford University Press.

Tyrberg, Tommy. (2009). Holocene avian extinctions, pp. 63-106. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp.

Watanabe, Junya. (2017). Quantitative discrimination of flightlessness in fossil Anatidae from skeletal proportions. The Auk 134(3): 672-695.

Young, H. Glyn, Tonge, Simon J. and Hume, Julian Pender. (1996). Review of Holocene wildfowl extinctions. Wildfowl 47: 167-181.

Ziegler, A. C. (1972). Ancient Molokai Goose Bones Stir World of Biology. Honolulu: Star-Bulletin and Advertiser, p. A 6-7, Feb. 27 (Report of interview  with Dr. Ziegler by Bruce Benson).


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