Identification: Medium-sized drongo with thick bill, flared but shallowly forked tail, with outer tail feathers curving outwards. Feathers glossy. Juveniles may show some white spotting on breast and belly. Differs from Black Drongo (D. macrocercus) as feathers of Crow-billed Drongo glossier, tail less forked, bill thicker and longer, no white loral spot. Juvenile Crow-billed Drongos have white spotting on breast and belly whereas Black Drongo does not. They also occur in different habitats; differs from Square-tailed Drongo-Cuckoo as crow-billed drongo tail is more forked, differs from Greater Racket-tailed Drongo with no tail extensions, tail more deeply and widely forked, glossier underparts.