Kalahari Desert bird ("Sagittarius serpentarius"), martial eagle ("Polemaetus bellicosus") and other eagles, the giant eagle owl ("Bubo lacteus") and other owls, falcons, goshawks, kestrels, and kites. Other animals include wildebeest, springbok and other antelopes, porcupines ("Hystrix africaeaustralis") and ostriches ("Struthio camelus"). Some of the areas within the Kalahari are seasonal wetlands, such as the Makgadikgadi Pans of Botswana. This area, for example, supports numerous halophilic species, and in the rainy season, tens of thousands of flamingos visit these pans. The biggest threat to wildlife are the fences erected to manage herds of grazing cattle, a practice which also removes the plant cover
Lost City of the Kalahari any signs of construction in the area. A. J. Clement researched the story in 1964 and advanced a new theory. Clement claimed his study of Farini's description of his route highlighted inconsistencies in Farini's story. Clement concluded that Farini went deep into Southern Africa, but he never actually went to the heart of the Kalahari where he claimed the Lost City was sited. To test this premise Clement explored what he regarded as Farini's true route and discovered a set of monumental rocks, resembling walls. Clement concluded that Farini's 'lost city' was shown to exist but as a natural formation.