single male mallard duck bird - latin anas platyrhynchos - during the spring mating season in wetlands of north-eastern poland

mallard duck anas platyrhynchos krzyzowka kaczka narew biebrzanski national park narwianski bird grass meadow swim reserve avian wetland wetlands moor moors lakeland wildlife nature natural life ecology fauna poland europe wing wings beak tail neck color colorful wild zoology travel exterior outside outdoor one single alone green