Red-throated cliff swallow (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Red-throated cliff swallow" 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). "Petrochelidon rufigula". IUCN Red List of Threatened Species. 2016: e.T22712405A94332502. doi:10.2305/IUCN.UK.2016-3.RLTS.T22712405A94332502.en. Retrieved 16 November 2021.

iucnredlist.org

BirdLife International (2016). "Petrochelidon rufigula". IUCN Red List of Threatened Species. 2016: e.T22712405A94332502. doi:10.2305/IUCN.UK.2016-3.RLTS.T22712405A94332502.en. Retrieved 16 November 2021.