Davis, Robert A.; Dutson, Guy; Szabo, Judit K. (2018). „Conservation status of threatened and endemic birds of New Britain, Papua New Guinea”. Bird Conservation International (на језику: енглески). 28 (3): 439—450. ISSN0959-2709. doi:10.1017/S0959270917000156.
Davis, Robert A.; Dutson, Guy; Szabo, Judit K. (2018). „Conservation status of threatened and endemic birds of New Britain, Papua New Guinea”. Bird Conservation International (на језику: енглески). 28 (3): 439—450. ISSN0959-2709. doi:10.1017/S0959270917000156.