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Range DescriptionThe current range of the Corsac is disjunct. One part covers the Middle Asian republics of Turkmenistan, Uzbekistan, Tajikistan and Kazakhstan, as well as steppe and forest-steppe areas of Russia, including the southern region of Western Siberia. In Europe its range reaches the Samara Region, Tatarstan to the North and northern Caucasia to the South. The second, much smaller area lies in southern Transbaikalye representing the northern periphery of the Mongolian and Manchurian section of the species area. Outside Russia the species area includes the steppe part of north-eastern China, including Manchuria, Inner Mongolia, and the region between Argun and Big Khingan, the entire Mongolian republic except for its forested and mountain regions, Dgungaria, Kashgaria, Afghanistan (probably only northern) and north-eastern Iran. Southern limit of distribution is unknown, but possibly it reaches to the mountain ridges separating the Tibet Highland from the North. Thus, the two ranges (western and eastern) are connected by a relatively narrow neck in the Dgungar Gate and Zaisan Basin region. In recent years, a westward area expansion has been recorded, particularly into the Voronezh region following active recovery of baibak (Marmota bobac) populations. Occasionally, the species is recorded from the Ukrainian steppe (as far as Pavlodar to the West), eastern Transcaucasia (Azerbaijan) and, probably, western Kyrgyzstan.
In Russia the Corsac is rare in most regions, but common in West Siberia and Transbaikalie. It sometimes occurs in northern parts of West Siberia's forested steppes, but in low numbers. The species is common everywhere between the Volga and Ural rivers. In Turkmenistan, Kazakhstan, Mongolia and northern China, the corsac is Common or abundant, although in Tajikistan and Uzbekistan the species is usually rare. Population status in Afghanistan and Iran is unknown.