Ключевые слова: africa, amazon, animal, beautiful, bill, billed, bird, black, borneo, buceros, bucerotidae, casque, endanger, enormous, feather, features, forest, great, horn, hornbill, khao, largest, mandible, nature, orange, perching, plumage, rainforest, rhinoceros, species, strange, strikingly, thai, thaiand, thailand, tropical, wild, wildlife, yai, yellow,