Ключевые слова: april, background, beautiful, birch, birch forest, birch grove, birch tree, birch trunks, birch wood, black, blue, branch, bright, calm, canada, cold, country, day, diaphanous, early, eco, ecology, environment, extreme, finland, forest, forest background, forest landscape, forest trees, grove, ice, landscape, light, march, morning, nature, norway, outdoor, park, pine, russia, scene, scenery, scenic, season, sky, snow, snowy, spring, sunlight, sunny, tree, trunks, weather, white, winter, winter day, wood,