Forest bird community composition in relation to distance from the railway line in eastern Poland.

Bird species were classified according to their foraging (G—granivore-insectivore; I—insectivore; R—raptor) and migratory behaviour (M-migratory; R-resident species). For each species, we show the total number of birds detected and the percentage (in parentheses) at each point (A—30 m, B—280 m, C—530 m).