Braun, M.P., Datzmann, T., Arndt, T., Reinschmidt, M., Schnitker, H., Bahr, N., Sauer-Gürth, H. & Wink, M. (2019) A molecular phylogeny of the genus Psittacula sensu lato (Aves: Psittaciformes: Psittacidae: Psittacula, Psittinus, Tanygnathus, †Mascarinus) with taxonomic implications . Zootaxa, 4563 (3), 547–562.