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Purple heron (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Purple heron" in English language version.

refsWebsite
Global rank English rank
2doi.org
2nd place
2nd place
1iucnredlist.org
88th place
160th place
1web.archive.org
1st place
1st place
1arkive.org
5,313th place
4,662nd place
1worldbirdnames.org
1,007th place
1,255th place
1ornitaxa.com
low place
low place
1itis.gov
656th place
1,126th place
1archive.org
6th place
6th place
1books.google.com
3rd place
3rd place
1unep-aewa.org
low place
low place

archive.org

arkive.org

books.google.com

doi.org

  • BirdLife International (2019). "Ardea purpurea". IUCN Red List of Threatened Species. 2019: e.T22697031A154816177. doi:10.2305/IUCN.UK.2019-3.RLTS.T22697031A154816177.en. Retrieved 11 November 2021.
  • Gill, F.; Donsker, D., eds. (2015). IOC World Bird List (version 5.3) (Report). doi:10.14344/IOC.ML.5.3. Retrieved 25 August 2015.

itis.gov

iucnredlist.org

  • BirdLife International (2019). "Ardea purpurea". IUCN Red List of Threatened Species. 2019: e.T22697031A154816177. doi:10.2305/IUCN.UK.2019-3.RLTS.T22697031A154816177.en. Retrieved 11 November 2021.

ornitaxa.com

  • de By, R.A. "Cape Verde Purple Heron". Recent proposals for specifically distinct bird species: Herons. Bird Taxonomy for Birders.

unep-aewa.org

  • "AEWA Species". Agreement on the Conservation of African-Eurasian Migratory Waterbirds. Retrieved 23 October 2015.

web.archive.org

worldbirdnames.org