birch forest on sandy dunes of natural landscape protected area of mazovian landscape park in mazovia region in

betula bio biodiversity birch brown color colorful deserted diversity dune early ecology empty europe foliage forest green greenery karczew krajobrazowy landscape leaf life litter masovia mazovia mazovian mazowiecki mixed natural nature nobody one otwock outdoor outside panorama panoramic park pattern pendula people poland sand sandy scenic spring thicket travel tree trunks undergrowth vivid wild wood wooded