Red Sea cliff swallow (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Red Sea cliff swallow" in English language version.

Last modified: 15:04:06, 9 May 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

2^nd place

2^nd place

22biodiversitylibrary.org

168^th place

136^th place

11iucnredlist.org

39^th place

71^st place

biodiversitylibrary.org (Global: 168^th place; English: 136^th place)

Butchart, S.H.M. (2007). "Birds to find: a review of "lost", obscure and poorly known African bird species". Bulletin of the African Bird Club. 14 (2): 139–157. doi:10.5962/p.309813.
Madge, S.C.; Redman, N.J. (1989). "The existence of a form of Cliff Swallow, Hirundo sp., in Ethiopia". Scopus. 13: 126–129.

doi.org (Global: 2^nd place; English: 2^nd place)

BirdLife International (2025). "Petrochelidon perdita". IUCN Red List of Threatened Species. 2025 e.T22712390A269630709. doi:10.2305/IUCN.UK.2025-2.RLTS.T22712390A269630709.en.
Butchart, S.H.M. (2007). "Birds to find: a review of "lost", obscure and poorly known African bird species". Bulletin of the African Bird Club. 14 (2): 139–157. doi:10.5962/p.309813.

iucnredlist.org (Global: 39^th place; English: 71^st place)

BirdLife International (2025). "Petrochelidon perdita". IUCN Red List of Threatened Species. 2025 e.T22712390A269630709. doi:10.2305/IUCN.UK.2025-2.RLTS.T22712390A269630709.en.