The Golden Arc describes the geological area stretching from the cities of Johannesburg to Welkom. Once a large inland lake, the alluvial soils contain large deposits of gold and became the source for the Witwatersrand Gold Rush of 1886. Thousands of gold prospectors poured into the area and helped found Johannesburg.
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Dendrocygna bicolor - The fulvous whistling duck is one of about eight species in the whistling duck genus. Whistling ducks are gregarious birds gathering in large flocks and emitting distinctive whistling calls when traveling to and from their roosting sites. The fulvous whistling duck is found throughout the tropical regions of Africa, the Americas, and the Indian Subcontinent. Breeding pairs mate for life and share in caring for the chicks. There is no noticeable difference in plumage color, but males are larger and their call has a different acoustic style.
