single juvenile mallard duck bird nestling - latin anas platyrhynchos - on a water surface during the spring mating season in

mallard duck anas platyrhynchos krzyzowka kaczka narew biebrzanski national park narwianski bird pond lake water surface 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 brown