ANATIDAE gen. et. sp. indet. #1
Giant O’ahu goose, Supernumerary Oʻahu goose
Taxonomy & Nomenclature
Synonyms: "Supernumerary Oahu goose" Olson & James, 1982:34, 44, 1984:771, 1991:47; Tyrberg, 2009:68
Conservation Status
Extinct or Invalid
Last record: 770 ± 70yBP (Harmon et al., 2026)
Distribution & Habitat
Oahu, Hawaiian Islands, USA
Biology & Ecology
Hypodigm
Media
References
Faurby, Søren, Matthews, Tom J., Triantis, Kostas A. and Sayol, Ferran. (2026). Quantifying the unrecorded loss of avian phylogenetic diversity. Ecography 2026: e08267. https://doi.org/10.1002/ecog.08267
Harmon, Kristen C., Price, Melissa R. and Winter, Kawika B. (2026). The “regime shift extinctions” hypothesis and mass
extinction of waterbirds in Hawaiʻi. Ecosphere 17: e70445. https://doi.org/10.1002/ecs2.70445
Matthews, Thomas J., Triantis, Kostas A., Wayman, Joseph P., Martin, Thomas E., Hume, Julian P., Cardoso, Pedro, Faurby, Søren, Mendenhall, Chase D., Dufour, Paul, Rigal, François, Cooke, Rob, Whittaker, Robert J., Pigot, Alex L., Thébaud, Christophe, Jørgensen, Maria Wagner, Benavides, Eva, Soares, Filipa C., Ulrich, Werner, Kubota, Yasuhiro, Sadler, Jon P., Tobias, Joseph A. and Sayol, Ferran. (2024). The global loss of avian functional and phylogenetic diversity from anthropogenic extinctions. Science 386(6717): 55-60. https://doi.org/10.1126/science.adk7898 [Supplementary Materials; Dryad dataset; Zenodo codeset]
Matthews, Thomas J., Wayman, Joseph P., Cardoso, Pedro, Sayol, Ferran, Hume, Julian P., Ulrich, Werner, Tobias, Joseph A., Soares, Filipa C., Thébaud, Christophe, Martin, Thomas E. and Triantis, Kostas A. (2022). Threatened and extinct island endemic birds of the world: Distribution, threats and functional diversity. Journal of Biogeography 49(11): 1920-1940. https://doi.org/10.1111/jbi.14474 [Appendix S1 (.docx); Appendix S2 (.pdf)]
Olson SL and James HF (1982) Prodromus of the fossil avifauna of the Hawaiian Islands. Smithsonian Contributions to Zoology 365, 1-59.
Olson SL and James HF (1984) The role of Polynesians in the extinction of the avifauna of the Hawaiian islands. In Martin PS and Klein RG, eds, Quaternary Extinctions: a Prehistoric Revolution, pp. 768–780. University of Arizona Press, Tucson.
Olson SL and James HF (1991) Descriptions of thirty two new species of birds from the Hawaiian Islands: Part I. Non-Passeriformes. Ornithological Monographs 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. https://doi.org/10.1126/sciadv.abb6095 [Supplementary Material (Data File S1)]
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.
Young, H. Glyn, Tonge, Simon J. and Hume, Julian Pender. (1996). Review of Holocene wildfowl extinctions. Wildfowl 47: 167-181.
https://en.wikipedia.org/wiki/List_of_Late_Quaternary_prehistoric_bird_species