Cheke, A. S. (1987). "An ecological history of the Mascarene Islands, with particular reference to extinctions and introductions of land vertebrates". In Diamond, A. W. (ed.). Studies of Mascarene Island Birds. Cambridge University Press. pp. 45–46. doi:10.1017/CBO9780511735769.003. ISBN978-0-521-11331-1.
Jones, C. G. (1987). "The larger land-birds of Mauritius". In Diamond, A. W. (ed.). Studies of Mascarene Island Birds. Cambridge University Press. pp. 271–300. doi:10.1017/CBO9780511735769.007. ISBN978-0-521-11331-1.
Groombridge, J. J.; Jones, C. G.; Nichols, R. A.; Carlton, M.; Bruford, M. W. (2004). "Molecular phylogeny and morphological change in the Psittacula parakeets". Molecular Phylogenetics and Evolution. 31 (1): 96–108. doi:10.1016/j.ympev.2003.07.008. PMID15019611.
Kundu, S.; Jones, C. G.; Prys-Jones, R. P.; Groombridge, J. J. (2011). "The evolution of the Indian Ocean parrots (Psittaciformes): Extinction, adaptive radiation and eustacy". Molecular Phylogenetics and Evolution. 62 (1): 296–305. doi:10.1016/j.ympev.2011.09.025. PMID22019932.
Jansen, J. J. F. J.; Cheke, A. S. (2021). "Variation in Echo Parakeets (Psittacula eques (Boddaert, 1783) [Psittaculidae]) in relation to inter-island differences". Zoosystema. 43 (12). doi:10.5252/zoosystema2021v43a12. ISSN1280-9551. S2CID234751022.
Selvatti, Alexandre Pedro; Galvão, Ana; Mayr, Gerald; Miyaki, Cristina Yumi; Russo, Claudia Augusta de Moraes (2022). "Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines". Journal of Biogeography. 49 (10): 1753–1766. doi:10.1111/jbi.14466.
Home, J. F. M. (1987). "Vocalisations of the endemic land-birds of the Mascarene Islands". In Diamond, A. W. (ed.). Studies of Mascarene Island Birds. Cambridge University Press. pp. 106–110. doi:10.1017/CBO9780511735769.005. ISBN978-0-521-11331-1.
Cheke, A. S.; Jones, C. G. (1987). "Measurements and weights of the surviving endemic birds of the Mascarenes and their eggs". In Diamond, A. W. (ed.). Studies of Mascarene Island Birds. Cambridge University Press. pp. 404–413. doi:10.1017/CBO9780511735769.011. ISBN978-0-521-11331-1.
Taylor, T. D.; Parkin, D. T. (2009). "Preliminary evidence suggests extra-pair mating in the endangered echo parakeet, Psittacula eques". African Zoology. 44 (1): 71–74. doi:10.1080/15627020.2009.11407440. S2CID219291732.
Groombridge, J. J.; Jones, C. G.; Nichols, R. A.; Carlton, M.; Bruford, M. W. (2004). "Molecular phylogeny and morphological change in the Psittacula parakeets". Molecular Phylogenetics and Evolution. 31 (1): 96–108. doi:10.1016/j.ympev.2003.07.008. PMID15019611.
Kundu, S.; Jones, C. G.; Prys-Jones, R. P.; Groombridge, J. J. (2011). "The evolution of the Indian Ocean parrots (Psittaciformes): Extinction, adaptive radiation and eustacy". Molecular Phylogenetics and Evolution. 62 (1): 296–305. doi:10.1016/j.ympev.2011.09.025. PMID22019932.
Braun, Michael P.; Datzmann, Thomas; Arndt, Thomas; Reinschmidt, Matthias; Schnitker, Heinz; Bahr, Norbert; Sauer-Gürth, Hedwig; Wink, Michael (2019). "A molecular phylogeny of the genus Psittacula sensu lato (Aves: Psittaciformes: Psittacidae: Psittacula, Psittinus, Tanygnathus, †Mascarinus) with taxonomic implications". Zootaxa. 4563 (3): 547. doi:10.11646/zootaxa.4563.3.8. PMID31716534. S2CID91969786.
Jansen, J. J. F. J.; Cheke, A. S. (2021). "Variation in Echo Parakeets (Psittacula eques (Boddaert, 1783) [Psittaculidae]) in relation to inter-island differences". Zoosystema. 43 (12). doi:10.5252/zoosystema2021v43a12. ISSN1280-9551. S2CID234751022.
Jansen, J. J. F. J.; Cheke, A. S. (2021). "Variation in Echo Parakeets (Psittacula eques (Boddaert, 1783) [Psittaculidae]) in relation to inter-island differences". Zoosystema. 43 (12). doi:10.5252/zoosystema2021v43a12. ISSN1280-9551. S2CID234751022.