Ключевые слова: avian, cloudy, cold, cold weather, ducks, ecosystem, flake, flock, frozen, habitat, horizon, landscape, leisure, leisure time, migration, natural setting, nature, outdoor, park, peaceful, pond, recreation, reflection, riverside, scenery, scenic, season, serene, serene environment, snow, snowflakes, swimming, tranquil, trees, water, water bodies, wildlife, wildlife watching, winter,