in 1972, on the initiative of the main directorate for nature reserves of the ussr ministry of agricultureding wood grouse in artificial conditions in the berezensky nature reserve. prerequisite was caused by a sharp decrease in the number of vauhar throughout its range. according to estimates of those years, the stocks of this bird. in the 1970s compared to 1960 in the ussr decreased by 10 times. the capercaillie nursery in the berezensky nature reserve was experimental. six generations of birds were obtained at the nursery; on its basis, methods for keeping and breeding wood grouse in captivity were developed. the grouse current in the postrezhsky swamp is unique; up to thirty males gather here every year in the spring for tournament fights. retaining their natural appearance for thousands years. the size of the territory of the takovish depends on the number of males who disperse throughout it, each occupying it for himself. at the same time, the most experienced and powerful fighters take places closer to the middle of the field. the young get the outskirts and woe to those who violate