close-up of adult, breeding male mallard or wild duck (anas platyrhynchos) with a glossy bottle-green head

adult anas animal beautiful bird birdwatching bottle-green bottlegreen breeding close-up closeup collar colorful contrast dabbing detailed distinct duck environment eye fauna feathers glossy green head ice iridescent lake leaves male mallard nature ornithology outdoors parks platyrhynchos portrait purpleblue river shiny speculum spring standing sun sunlight surrounded vibrant vivid water waves white wild wildlife winter