The impact of the extensive development of agriculture in the second half of the 20th century and the subsequent socioeconomic crisis on the distribution and number of the rook Corvus frugilegus in the dry steppes of the Kostanay region

Second edition. First publication: Bragin E.A., Bragina T.M. 2018. The impact of the extensive development of agriculture in the second half of the 20th century and the subsequent socio-economic crisis on the distribution and abundance of rooks in the dry steppes of the Kostanay region // Birds and agriculture. Ivanovo: 41-44.