The neck is bare of feathers and brilliantly colored in shades of blue with patches of red, with no wattle. The head from the ears to the casque above is black in color; the casque itself is a triangular-shaped bony growth of keratin not more than three inches in height, less than half the height of its relatives. | The neck is bare of feathers and brilliantly colored in shades of blue with patches of red, with no wattle. The head from the ears to the casque above is black in color; the casque itself is a triangular-shaped bony growth of keratin not more than three inches in height, less than half the height of its relatives. |