Reduction in the number of small passerine birds in the Zvenigorod biological station of Moscow university and the Sima quarry reserve (Moscow oblast) in recent years

Second edition. First publication: Gavrilov V.V., Goretskaya M.Y., Veselovskaya E.O. 2018. Reduction in the number of small passerines on the territory of the reserve “Zvenigorod Biological Station of Moscow State University and the Quarry of the Sima” (near Moscow region) in recent years // Actual problems of bird conservation. M .; Makhachkala: 130-133.