Ключевые слова: african, animal, back, bill, billed, black, blue, body, bulbous, comb, duck, feathers, grass, gray, green iridescence, grey, iridescent, knob, knobbilled, knobbly, land, looking, lump, magnificent, melanotos, nature, neck, odd, portrait, profile, protrusion, sarkidiornis, standing, strange, subsaharan, unusual, white, wildlife,