AN ANALYSIS OF THE AVIFAUNA OF THE ALDAN HIGHLANDS, NORTHEAST OF THE BAIKAL MOUNTAINOUS COUNTRY
Based on the results of the studies conducted over the past 50 years, the modern avifauna of the Aldan Highlands is established to consist of 198 species, of which 175 are breeding species, 19 migratory, and 4 vagrant ones. The taxonomic, faunal, and landscape-zonal structures of avian complexes are revealed. 166 nesting species are registered in the forest belt, 60 species in the mountainous sparse woodland, and 22 in the mountain tundra areas. More than half of the species that nest in the forest belt are not distributed above its upper limit. The avifauna of the mountain balds, mainly of the mountain tundra, is better represented by widespread and boreal hypo-arctic species than by alpine and arctic-alpine ones.