On the issue of expediency of the rustic bunting Ocyris rusticus Pallas, 1776, inclusion in the Red Data Book of the Russian Federation

The work reveals possible reasons why in recent years the Rustic Bunting Ocyris rusticus - the species, which had previously been considered numerous within its habitat, began to be treated by a number of experts as a decreasing one, up to their offers to include this species in the Red Data Book of Russia.