3.1. Bird diversity
Altogether we registered 539 individuals representing 33 species
during the three bird survey rounds. The results of the linear
mixed model showed a higher bird abundance as well as species
richness at the forest edge compared to the forest interior (Table 1;
Fig. 1a). In addition, bush percentage had a positive effect on bird
species richness (Table 1; Fig. 2). Bush percentage did not change
with distance from forest edge considering all study plots (oneway
ANOVA, F3,44 = 0.04; P = 0.991).