Bill large, long, straight, and without any grooves, 'All anterior toes joined at base. Of large size. Legs long. Tibia half naked. Tarsus reticulated with hexagonal scales. Over thirty remiges. Genys recurved, except in Tantalidae. Inhabit India and its Archipelago, Africa, and America. Flight powerful. A few migratory and gregarious. Breed in lofty trees or on high buildings. Giants of the Bird Kingdom.
(i.) Under tail-coverts ordinary, not stiffened and not longer than tail.