Rote Boobook Ninox rotiensis

Found only in forested areas on Rote Island, this medium-sized brown owl is physically all but identical to several closely-related species spread out across Indonesia and Australasia; fortunately, no others are present on Rote. Note the bright yellow eyes, speckled underparts, and large round head characteristic of the Boobooks. Gives a very dry, grating “grukgruk”, often in extended series and in duets. Formerly regarded as a subspecies of Southern Boobook.