A distinctive raptor confined to New Britain. Entirely blackish-brown with indistinct dark markings and a beady pale eye. In flight appears long-tailed and broad-winged, with well-pronounced “fingers” on the outer wing; from below, note bold white bars on the tail, outermost wing feathers, and trailing edge of the wings. Juveniles resemble adults. Found in forest from lowlands to hills. Unmistakable in its limited range, where no other similar raptors occur. Call consists of a series of upslurred whistles, rapidly gaining in pace.