The birds of Pasvik / E. I. Khlebosolov, O. A. Makarova, O. A. Khlebosolova [et al. ; English transl. Nikita Chernetsov]. - Ryazan : Golosgubernii, 2007. - 175 с. : ил., портр.

On the basis o f the data obtained we made a comparative analysis o f behaviour and ecology o f birds, determ ined the means o f resource sharing, ecological segre­ gation and niche occupation. All this makes it possible to understand how the birds avoid interspecific competition, co-habit in the same area and form communities. 25