A small, uncommon bird of lowland and foothill forest canopy and edge. Entirely dark with an obvious white mark from the forehead down between the bill and eye. Males are entirely black and females have dark brown underparts. Varies regionally, with Mindanao birds having an additional white mark in the wing. Unmistakable. Voice includes a downslurred series of three fairly high-pitched downslurred notes, “piu-piu piu.” Also gives a rapid staccato trill.