Help for âsuper smartâ bird By Duncan Guy Share The isiZulu-speaking areas of South Africa have the largest population of Southern ground hornbills after the Kruger National Park. So says Limpopo-based ornithologist Lucy Kemp, who this week won a prestigious international Whitley Award for her work on the large black, red-faced birds that, in half a generation, have gone from endangered to critically endangered. The belief among traditional Zulus that the bird they call iNsingizi â or the onomatopoeic Ingududu â brings rain has been their saving grace. âFor subsistence farmers theyâre most important,â said Kemp. âHowever, there are areas where the traditions have eroded.â