Karoo Supergroup of the country, and in the Lebombo mountains along the Mozambique border. Once the layer of hard lava was eroded away, the softer Karoo sediments over the rest of the basin eroded even faster. However, the dolerite sills resisted erosion, protecting the softer Beaufort and Ecca shales beneath them. This created numerous and widespread flat topped hills, known as Karoo Koppies ("koppie" being the Afrikaans term for hill), which are iconic of the Karoo, and, by extension, the South African landscape. The dykes, or vertical fissures which brought the lava to the surface stand out today as linear ridges extending
Karoo korhaan and breast of the subspecies "E. v. namaqua" is greyer compared to the nominate subspecies. Karoo korhaans are omnivorous, but plant material is dominant in their diet. Flowers, fruit, leaves and corms all being taken. In particular, flowers from Asteraceae, Brassicaceae and Mesembryanthemaceae are all seasonally important. Karoo korhaan The karoo korhaan ("Eupodotis vigorsii"), also known as karoo bustard, is a species of bird in the bustard family, Otididae, from Southern Africa. The species is sometimes placed in the genus "Heterotetrax". It is the sister-species to Rüppell's korhaan, and the two species are sometimes considered conspecific (the same species). There