Whooper swan (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Whooper swan" in English language version.

refsWebsite
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2nd place
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archive.org

bbc.co.uk

news.bbc.co.uk

doi.org

  • BirdLife International (2016). "Cygnus cygnus". IUCN Red List of Threatened Species. 2016: e.T22679856A85965262. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679856A85965262.en. Retrieved 12 November 2021.
  • Black, J. (2010). "Preflight Signaling in Swans: A Mechanism for Group Cohesion and Flock Formation" (PDF). Ethology. 79 (2): 143–157. doi:10.1111/j.1439-0310.1988.tb00707.x. Archived from the original (PDF) on 2016-03-04. Retrieved 2015-01-03.

hillpost.in

humboldt.edu

www2.humboldt.edu

iucnredlist.org

  • BirdLife International (2016). "Cygnus cygnus". IUCN Red List of Threatened Species. 2016: e.T22679856A85965262. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679856A85965262.en. Retrieved 12 November 2021.

panda.org

wwf.panda.org

suomenluonto.fi

uni-goettingen.de

gdz.sub.uni-goettingen.de

web.archive.org