COLLAR, Nigel James; BOESMAN, Peter; SINGH, Pratap. Species rank for the Nicobar Imperial-pigeon <I>Ducula nicobarica</I>. Journal of the Bombay Natural History Society (JBNHS), [S. l.], v. 117, 2020. DOI: 10.17087/jbnhs/2020/v117/151336. Disponível em: http://bnhsjournal.in/index.php/bnhs/article/view/151336. Acesso em: 30 apr. 2026.