黑颈天鹅 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "黑颈天鹅" in Chinese language version.

refsWebsite

Global rank Chinese rank

1iucnredlist.org

88^th place

102^nd place

656^th place

759^th place

itis.gov (Global: 656^th place; Chinese: 759^th place)

Cygnus melanocoryphus. ITIS. [21 November 2014].

iucnredlist.org (Global: 88^th place; Chinese: 102^nd place)

BirdLife International. Cygnus melancoryphus. The IUCN Red List of Threatened Species. 2012 [26 November 2013]. old-form url