Grey-headed gull (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Grey-headed gull" in English language version.

refsWebsite

Global rank English rank

1iucnredlist.org

88^th place

160^th place

2^nd place

2^nd place

doi.org

BirdLife International (2016). "Larus cirrocephalus". IUCN Red List of Threatened Species. 2016: e.T22694387A93451041. doi:10.2305/IUCN.UK.2016-3.RLTS.T22694387A93451041.en. Retrieved 14 January 2018.

iucnredlist.org

BirdLife International (2016). "Larus cirrocephalus". IUCN Red List of Threatened Species. 2016: e.T22694387A93451041. doi:10.2305/IUCN.UK.2016-3.RLTS.T22694387A93451041.en. Retrieved 14 January 2018.