White-fronted scops owl (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "White-fronted scops owl" in English language version.

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387^th place

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88^th place

160^th place

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2,927^th place

2,249^th place

1,007^th place

1,255^th place

biodiversitylibrary.org

Cassin, John (1849). "Species of owls, presumed to be undescribed, specimens of which are in the collection of the Academy of Natural Sciences of Philadelphia". Proceedings of the Academy of Natural Sciences of Philadelphia. 4: 121–125 [121]. The title page is dated 1848 but the volume was not published until the following year.
Peters, James Lee, ed. (1940). Check-list of Birds of the World. Vol. 4. Cambridge, Massachusetts: Harvard University Press. p. 87.

Gill, Frank; Donsker, David, eds. (2017). "Owls". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 23 December 2017.