Sraml, M.; Christidis, L.; Easteal, S.; Horn, P.; Collet, C. (1996). "Molecular Relationships Within Australasian Waterfowl (Anseriformes)". Australian Journal of Zoology. 44 (1): 47–58. doi:10.1071/ZO9960047.
Burney, David A.; James, Helen F.; Burney, Lida Pigott; Olson, Storrs L.; Kikuchi, William; Wagner, Warren L.; Burney, Mara; McCloskey, Deirdre; Kikuchi, Delores; Grady, Frederick V.; Gage, Reginald II; Nishek, Robert (2001). "Fossil Evidence for a Diverse Biota from Kauaʻi and Its Transformation since Human Arrival". Ecological Monographs. 71 (4): 615–641. doi:10.2307/3100038. hdl:10088/109. JSTOR3100038.
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Burney, David A.; James, Helen F.; Burney, Lida Pigott; Olson, Storrs L.; Kikuchi, William; Wagner, Warren L.; Burney, Mara; McCloskey, Deirdre; Kikuchi, Delores; Grady, Frederick V.; Gage, Reginald II; Nishek, Robert (2001). "Fossil Evidence for a Diverse Biota from Kauaʻi and Its Transformation since Human Arrival". Ecological Monographs. 71 (4): 615–641. doi:10.2307/3100038. hdl:10088/109. JSTOR3100038.
Burney, David A.; James, Helen F.; Burney, Lida Pigott; Olson, Storrs L.; Kikuchi, William; Wagner, Warren L.; Burney, Mara; McCloskey, Deirdre; Kikuchi, Delores; Grady, Frederick V.; Gage, Reginald II; Nishek, Robert (2001). "Fossil Evidence for a Diverse Biota from Kauaʻi and Its Transformation since Human Arrival". Ecological Monographs. 71 (4): 615–641. doi:10.2307/3100038. hdl:10088/109. JSTOR3100038.