Siberian fur trade best quality fitch fur comes from Siberia. The fitch, or European polecat, is a ferret-like animal, and the corsac is a type of fox that is also found in Siberia. However, these furs are less popular because foxes are common to virtually every fur-trading country in the world. The Siberian ushanka is a full fur hat, consisting entirely of warm fur. It is commonly made out of black foxes, red foxes, silver foxes, shadow foxes, blue foxes, brown foxes, raccoons, martens, or black beavers. It covers the top of the head and comes down to also cover the ears and
European polecat and Maly Irgiz Rivers. Further on, the border goes to the north along the Volga River. It steeply returns east somewhat south at the Samara bend, passing around Obshchy Syrt, reaching the Urals at the latitude of Magnitogorsk. The range of the polecat within the former Soviet Union has expanded northwards. From 1930-1952 for example, the polecat colonised northwestern Karelia and southern Finland. Prior to the First World War, the Russian Empire produced more than 50% of global polecat skins. The harvesting of polecats in Russia increased substantially after the October Revolution, which coincided with Western Europe's decline in polecat