del Hoyo, J.; Elliott, A.; Sargatal, J. 1999. Handbook of the Birds of the World, vol. 5: Barn-owls to Hummingbirds. Lynx Edicions, Barcelona, Spain.
König, C. and Weick, F. 2008. Owls of the World. Christopher Helm, London.
Raffaele, H., Wiley, J., Garrido, O., Keith, A., and Raffaele, J. 1998. Birds of the West Indies. Christopher Helm, London.
Wetmore, A. 1927. The birds of Porto Rico and the Virgin Islands. New York Academy of Sciences, New York.
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Recommended citation
BirdLife International (2024) Species factsheet: Puerto Rican Owl Gymnasio nudipes. Downloaded from
https://datazone.birdlife.org/species/factsheet/puerto-rican-owl-gymnasio-nudipes on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.