Blue cuckooshrike (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Blue cuckooshrike" in English language version.

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biodiversitylibrary.org

Cassin, 1852. Graucalus azureus (protoniem). Proc. Acad. Nat. Sci. Philadelphia 5(1851) p.348. BHL

BirdLife International (2016). "Cyanograucalus azureus". IUCN Red List of Threatened Species. 2016: e.T22706548A94076351. doi:10.2305/IUCN.UK.2016-3.RLTS.T22706548A94076351.en. Retrieved 12 November 2021.
Jønsson, K.A.; Bowie, R.C.K.; Nylander, J.A.A.; Christidis, L.; Norman, J.A.; Fjeldså, J. (2010). "Biogeographical history of cuckoo-shrikes (Aves: Passeriformes): transoceanic colonization of Africa from Australo-Papua". Journal of Biogeography. 37 (9): 1767–1781. doi:10.1111/j.1365-2699.2010.02328.x. S2CID 52105369.

Jønsson, K.A.; Bowie, R.C.K.; Nylander, J.A.A.; Christidis, L.; Norman, J.A.; Fjeldså, J. (2010). "Biogeographical history of cuckoo-shrikes (Aves: Passeriformes): transoceanic colonization of Africa from Australo-Papua". Journal of Biogeography. 37 (9): 1767–1781. doi:10.1111/j.1365-2699.2010.02328.x. S2CID 52105369.

Gill, Frank; Donsker, David, eds. (2019). "Bristlehead, butcherbirds, woodswallows, ioras, cuckooshrikes, Shriketit". World Bird List Version 9.2. International Ornithologists' Union. Retrieved 23 August 2019.