↑(EN) F. Gill e D. Donsker (a cura di), Family Strigidae, in IOC World Bird Names (ver 14.2), International Ornithologists’ Union, 2024. URL consultato il 13 maggio 2014.
↑John H. Boyd III, Family Strigidae, su Aves - A Taxonomy in Flux 2.5.
↑Wink M., Heidrich P., Sauer-Gürth H., Elsayed A.-A., and Gonzalez J., Molecular Phylogeny and Systematics of Owls (Strigiformes), in Owls: A Guide to Owls of the World, 2nd ed., (König C., and F. Weick), London, Christopher Helm, 2008.
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