Analysis of the state of fauna of non-passerine birds in south of the forest-steppe zone of the Right-bank Volga region in XX century. - V.V. Frolov, S.A. Korkina, A.V. Frolov, E.V. Lysenkov, A.S. Lapshin, O.V. Borodin. - Berkut. 10 (2). 2001. - P. 156-183.
The study area includes Mordovia, Penza region, right-bank parts of Ulyanovsk and Samara regions, north part of Saratov region (Figure). Reliable literature data about the ornithofauna of this area are known since the beginning of XIXth cent. Short history of research is described. Data obtained on borders of XIX–XXth and XX–XXIth cent. allow to compare the state of fauna of non-passerine birds for the century. At the beginning of XXth cent. it counted 161 species from 17 orders, at the end – 178 species from 16 orders (Table 1). Total during the century 187 species from 17 orders were discovered (Table 2). At the end of XXth cent. 9 species were absent: 8 vagrant ones and 1 sedentary species. 26 species were found: 15 – vagrant, 7 – migrating and breeding, 3 – passage migrants, 1 – sedentary. Sedentary non-passerine birds are represented by 23 species from 5 orders (Table 3). Willow Grouse is absent now, three new species appeared: Tengmalm’s Owl, Grey-headed Woodpecker, Middle Spotted Woodpecker. The group of migrating and breeding non-passerine birds has 94 species from 14 orders (Table 4). Wood Sandpiper was not found, 16 new species appeared. Passage migrants are presented by 31 species from 6 orders (Table 5). It has 9 new species. Wintering birds have 2 species from 2 orders (Table 6). Vagrant birds number 29 species from 7 orders (Table 7). Changes in numbers are presented in the Tables 8–12. The analysis shows the high degree of adaptation and the stability to changes of non-passerines, which were considered as more vulnerable than passerines. [Russian].
Key words: fauna, non-passerines, the Volga, number, changes, adaptation.
Address: V.V. Frolov, Sanitarniy proezd 6/1, Penza, 440026 Russia.