Bird population in the pine and birch forests of Kungurskii Raion (Perm’; Krai) under anthropogenic load of various levels

In 1995—2006, the birds inhabiting the pine and birch forests as well as pine plantations were studied in and near the town of Kungur (Perm’ krai). The greatest faunal and biocenotic similarity of the bird populations was revealed in the pine forests in the town and raion, the lowest, in the birch forests. It was found that anthropogenic impact is the highest in the town birch forests, where it is seen in all studied parameters of ornitocenosis—density of bird population, species diversity and domination.