Bird survey at the permanent sample plots in the Prioksko-Terrasnyi Biosphere Reserve recorded in Chronicles of Nature

The dataset includes data on the density and species composition of birds during the breeding season at the permanent sample plots (the areas for bird census). Surveys were conducted from 1984 to 2018 with survey season between May and middle of July. The permanent sample plots are located in typical forest habitats of the strict nature reserve (category IUCN Ia): pine forest, oakwood, spruce forest, and mixed forest. During surveys 52 species of birds were recorded in total.