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Collar, N. og P. F. D. Boesman (2020). Rufous-fronted Parakeet (Bolborhynchus ferrugineifrons), version 1.0. I Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, og E. de Juana, red.) Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rufpar1.01
Collar, N. og P. F. D. Boesman (2020). Andean Parakeet (Bolborhynchus orbygnesius), version 1.0. I Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, og E. de Juana, red.) Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.andpar1.01
worldbirdnames.org
Gill, Frank; Donsker, David; Rasmussen, Pamela, red. (January 2023). «Hummingbirds». IOC World Bird List Version 13.1. International Ornithologists' Union. Henta 6. juli 2023.