Other Names: none
Distribution: subtropical and tropical regions of the Americas.
Size: 45-46 cm in length with a 110-114 cm wingspan.
Plumage: Generally black above and white below, with red legs. The bill is red with a black tip, laterally compressed, blade-like. Unique among birds in having a lower mandible much longer (about one-third) than the upper; this is characteristic of the species.Juveniles are mottled gray above, with a shorter bill.