Abstract
SUMMARY The area considered here is that part of South Africa south of the Orange River and west of the eastern borders of Mossel Bay, Oudtshoorn, Prince Albert, Beaufort West, Victoria West, Richmond, De Aar and Philipstown. It is considered to fall into three avifaunal divisions, winter‐rainfall area, temperate forest, and karoo. The affinities of the first and last of these are with the Southwest Arid zone; that of the second, which exists only ii isolated patches surrounded by winter‐rainfall vegetation, with the East Coast. No valid grounds exist for sub‐dividing the karoo into smaller areas. Examples arc given of changes of range in recent years.
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