Enormous flightless bird with dark glossy plumage. Distinctive with a large, horn-like plate on its head and two red neck-wattles. Unlikely to be confused with any other species. Hatchlings are brown and strongly striped. Juvenile and Immature birds are similar to adults but browner and with an absent or developing head-plate. Found in dense tropical rainforest, where it can be seen crossing roads, or along roadsides.