Fig. 4From: Recent changes in breeding abundance and distribution of the Common Pochard (Aythya ferina) in its eastern rangeTrends in numbers of the Common Pochard in 14 administrative regions of European Russia. Numbers refer to administrative regions identified as follows: 1—Leningrad; 2—Vologda; 3—Kaliningrad; 4—Moscow; 5—Ivanovo; 6—Smolensk; 7—Chuvashia Republic; 8—Kirov; 9—Lipetsk; 10—Penza; 11—Saratov; 12—Volgograd; 13—Krasnodar Territory; 14—Dagestan RepublicBack to article page