The history and modern condition of the urban fieldfare (Turdus pilaris L.) population in Kaliningrad
This article examines the history of formation of fieldfare population in Kaliningrad and describes its current condition. The fieldfare population density during the 2010—2013 nesting period was 0—1.5 breeding pairs/10 hecares in urban forests, 1.1—3.7 b. p./10 ha in city parks, and; 0—1 b. ...