Karoo chat Karoo chat The Karoo chat ("Emarginata schlegelii") is a small passerine bird of the Old World flycatcher family Muscicapidae. It is a common resident breeder in southwesternmost Angola, western Namibia and western South Africa. Its habitat is Karoo and desert scrub in the south, extending to the escarpment zone in the north. The first formal description of the Karoo chat was by the Swedish naturalist Johan August Wahlberg in 1855 under the binomial name "Erithacus schlegelii". The species was subsequently placed in the genus "Cercomela" introduced by Charles Lucien Bonaparte in 1856. It was moved to its current genus, "Emarginata",
Karoo sediments. This exposed the dolerite sills, which were more resistant to erosion than the Karoo sediments, forming one of the most characteristic features of the Karoo landscape, namely the flat topped hills, called "Karoo Koppies". The geology of the region bears no resemblance to that of the Great Karoo (see the diagram on the left, of a NS geological cross-section through the Little and Great Karoos). The valley is an integral part of the Cape Fold Mountain Belt, with the two ranges on either side composed of extremely hard, erosion-resistant, quartzitic sandstone belonging to the 450- to 510-million-year-old Table Mountain