Length: 22-23 inches
Wingspan: 57-70 inches
Weight: male 1200-1600 gm, female 1600-2000gm
White head, breast and belly. Brown stripe through eye; females have a speckled brown necklace. Wings and back brown and tail is barred. In flight, the wings are long and narrow; the wing bends back at the carpal joint (wrist), giving a characteristic shallow v-shape, and at the bend, there are conspicuous dark wrist patches. Immatures have pale buff edging above.
exposed tree; also nests on cliffs, power poles, buoys, specially designed platforms, and on the ground of predator free islands. Clutch 1-4 eggs.