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 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 yellow bill, its longer wings, and its greyer flanks.
- Bo T Bonnevie, The biology of suburban Olive Thrushes (Turdus olivaceus olivaceus) in the Eastern Cape, South Africa (2005). M.Sc. thesis, Rhodes University, South Africa
- Olive/Karoo Thrush identification
- Birds of Southern Africa - Karoo Thrush
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