Large drongo with a strongly forked tail. Found in forest, usually in the canopy or on prominent open perches. Often in pairs. Song is an explosive and highly variable mix of whistles, squeals, and rasps. Very similar to Fork-tailed Drongo, but found in forest rather than savanna habitats, the black back is not glossy and contrasts with the glossy wing, and the tail is more deeply forked. Also similar to Shining Drongo, but has a strongly forked tail and less glossy plumage, and is found in the canopy rather than the mid-story.