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

anas platyrhynchos animal bird glossy wildlife adult autumn beautiful beauty birdwatching bottlegreen breeding closeup colorful colors dabbing duck detailed details distinct environment eye fauna feathers green head iridescent lake leaves male mallard metallic nature ornithology outdoors parks portrait purpleblue river shiny speculum sun sunlight vibrant vivid water white collar wild close-up bottle-green swimming bright