|Taxonomic Notes :||Monotypic species endemic to the island of Sumba, Indonesia. |
Although known since the late 1980s, the species was only formally described in 2002: Olsen, Jerry ; Wink, Michael; Sauer-Gürth, Hedi & Trost, Susan. (2002). "A new Ninox owl from Sumba, Indonesia". EMU vol. 102:223-231, CSIRO for the RAOU.