||Khan S et al., Overview on the Role of Advance Genomics in Conservation Biology of Endangered Species. Int J Genomics. 2016 2016: 3460416. doi: 10.1155/2016/3460416 p.1 left columnPubMed ID28025636
|| D. W. Steadman, Extinction and Biogeography of Tropical Pacific Birds, Chicago University Press, Chicago, Ill, USA, 2006
||P.1 right column: "Only in the Island of Tropical Oceana, 1800 bird species were reported to extinct in approximately 2000 years, since human colonization [primary source]."