panoramic view of the grassy meadows and wetlands - wildlife and birds reserve - and the biebrza river in the biebrzanski national

poland biebrzanski biebrza national park reserve color colorful travel tourism outdoor nature bird birdie animal living wildlife wild green wetland wetlands moor marsh marshes marshland swamp swamps natural conservation bush wood wooden fields tree trees wooded grass river water wet treehouse watchhouse panoramic view grassy meadows birds