オークランドアイサ (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "オークランドアイサ" in Japanese language version.

refsWebsite

Global rank Japanese rank

1iucnredlist.org

88^th place

336^th place

iucnredlist.org

BirdLife International (2004). "Mergus australis". IUCN Red List of Threatened Species. Version 2006. International Union for Conservation of Nature. 2006年5月5日閲覧。 Database entry includes justification for why this species is listed as extinct