Methodological problems of studying the enclave transboundary ethnic groups of the Turkic peoples of the Volga-Urals

The article deals with the methodological problems of studying enclave transboundary groups of Bashkirs, Tatars and Chuvashs. Despite the established tradition to call all ethnic groups living outside their country of origin a diaspora, we believe that this term is not applicable to certain ethnic groups of the peoples in question. More precisely, in our opinion, the theory of enclaves reflects the current situation of these groups. The experience of studying these ethnic enclave groups can be applied in studying the formation of Russian identity.