The Madagascan harrier-hawk (Polyboroides radiatus) is a very large species of bird of prey in the family Accipitridae. It is endemic to Madagascar an island off the coast of Africa. The Madagascan harrier-hawk is a largish raptor with long and broad wings which when folded almost reach to the tip of the tail. It has a black, luxurious tail with a single broad grey band bisecting the black half way along its length, adult birds are grey above with blackish flight feathers.