Witrugzwaluw (Dutch Wikipedia)

Analysis of information sources in references of the Wikipedia article "Witrugzwaluw" in Dutch language version.

refsWebsite

Global rank Dutch rank

1iucnredlist.org

88^th place

20^th place

1biodiversitylibrary.org

387^th place

64^th place

biodiversitylibrary.org

Gould, 1841. Hirundo leucosternus (protoniem). Proc. Zool. Soc. London (1840), Pt 8, no. 95, p. 172. BHL

iucnredlist.org

(en) Witrugzwaluw op de IUCN Red List of Threatened Species.