A dull black bird, much more duller than Black with a long, forked tail and greyer underparts. No spot at base of bill and and vivid red irises. Tail fork usually deeper and more splayed. Juvenile greyer. Partly crepuscular. Hunts mainly aerial insects from bare branches in tree-tops. Usually solitary, in pairs or small parties. Noisy and bold, attacking passing raptors and corvids in particular. As with all drongos, other small birds often nest near them for protection. Nests high in tree.