The changes of species structure of ornithofauna of the Altai-Sayan region in connection with climate warming

Modern climate warming promotes range expansion of a group of birds, mainly in east direction. In post-glacial history, the similar climatic changes were also accompanied by stocking of the region by birds peculiar to the southern steppe and mountain areas. The continued modern climate warming is expected to cause occurrence of new representatives of Central-Asian and East-Siberian ornithofauna in the region.