The White-rumped Triller has records from Sulawesi and other parts of Indonesia. Males are black and white with a conspicuous white rump and eyebrow; females have gray backs and faint breast barring. It occurs singly or in pairs at forest edges, in cultivated areas, and in mangroves.
Males have black upperparts, a large white rump, a white eyebrow, extensive white markings on the black wings, and white underparts. Females have gray backs and faint breast barring; juveniles are brownish versions of females.
It uses forest edges, cultivated areas, and mangroves in lowlands and lower foothills, usually singly or in pairs. Oiseaux.net also describes it as an arboreal invertebrate gleaner.
An extinction-risk assessment has not been added yet.