Karoo thrush by its longer, entirely yellow bill, its longer wings, and its greyer flanks. It occurs in South Africa, where it is present in Little Namaqualand, the Karoo and Northern Cape, Free State, Gauteng, Limpopo, Mpumalanga and parts of the North West Province. Karoo thrush The Karoo thrush ("Turdus smithi") also known as Smith′s thrush, is a member of the thrush family in Africa. It has traditionally been considered a subspecies of the olive thrush (with which it is known to hybridize), but is increasingly treated as a separate species. This medium-sized bird has a length of about 24 cm. It
Ryn Desert can drop to a low of . Many small towns are scattered throughout the Ryn Desert, and population density is between 1 and 15 people per square mile. The Ryn lies in a semi-arid climate zone, and receives very little rainfall. High winds sweep across the desert, and in 2001 a dust storm in the Baltic Sea was determined as originating in the Ryn Desert. A study of long-range dust transportation to the Baltic Sea region—by analyzing dust pollution in Scandinavia, showed that aerosol concentrations there were influenced more by the Ryn Desert region than the Sahara Desert in Africa.