The dynamics of species composition of bird fauna summer sanctuaries Erbekskiy (Central Tuva)

The purpose of article is to highlight the results of scientific observations over three years for a change in the fauna of the summer population of bird in the territory of the state natural reserve of the Republic of Tuva «Eerbekskiy» of regional significance. The sanctuary is located in the southern spurs Uyuk ridge, through which the future planned area of railway construction Kyzyl-Kuragino, that entails a negative impact on the environment. The research allowed to track changes in species composition and structure of the population of 86 species of birds belonging to 57 genera, 27 families, 12 orders.. Among them, 5 birds species belongs to the Red Book of the Republic of Tuva (Falco cherrug, Bubo bubo, Aguila chrysaetos, Coturnix coturnix, Gallinago solitaria).