Slim, slightly crested flycatcher with a long tail that is often fanned. The back is blue, the underparts pale gray, and the outer tail white. Found in rainforest, gallery forest, lush gardens, and thick miombo. Often joins mixed-species feeding flocks. The song is a long, complex mix of warbling and chatty notes. Similar to African Blue Flycatcher, but has virtually no overlap in range, and easily separated by its white outer tail.