Behevioral acts and blackbird thrush on watering place

Aggression has important implications for ecological processes and evolutionary behavior strategies. Below there are the data concerning the aggression of blackbird and song thrush in natural conditions and the territories with significant anthropogenic influence on watering places during the nesting period, their relations to other behavior acts, their occupation dynamics during the day and the presence of other species of birds nearby. The interspecific and intraspecific contacts of thrushes are considered. The ratio of aggressive and non-aggressive contacts and the symmetry of interspecific relations (i.e. the ratio of interspecific relation initiated by the individuals of another species) were studied.