Southern Africa Region (Botswana, Namibia, South Africa) 1852
David Livingstone, Missionary Travels and Researches in South Africa, 1857, Chapter 5.
Before we came to the Orange River we saw the last portion of a migration of springbucks (‘Gazella euchore’, or tsepe). They come from the great Kalahari Desert, and, when first seen after crossing the colonial boundary, are said often to exceed forty thousand in number. I can not give an estimate of their numbers, for they appear spread over a vast expanse of country, and make a quivering motion as they feed, and move, and toss their graceful horns.