The Karoo Thrush (Turdus smithi) is a member of the thrush family in Africa. It has traditionally been considered a subspecies of the Olive Thrush (with which it is know to hybridize), but is increasingly treated as a separate species. This medium-sized bird has a length of about 24 cm. It has a wing length between 117 and 131 mm, a culmen length between 20 and 24 mm and a tarsus length between 30,0 and 34,5 mm. It can reach a mass of at least 86 g. It differs from the Olive Thrush by its longer, entirely orange bill, its longer wings, and its greyer flanks. It occurs in South Africa (Little Namaqualand, Karoo and Northern Cape, Free State, Gauteng, Limpopo, Mpumalanga and part of the North West Province).
- The biology of suburban Olive Thrushes (Turdus olivaceus olivaceus) in the Eastern Cape, South Africa
- Olive/Karoo Thrush identification
- Birds of Southern Africa - Karoo Thrush