early spring view of biebrza river valley wetlands and nature reserve in wierciszewo village in podlaskie voivodship in poland

air attraction bagna biebrza biebrzanski bird birding bush channel conservation country countryside ditch drainage europe flood forest grass horizon irrigation landmark landscape marsh moor narodowy national nature open outdoor panorama panoramic park pattern podlasie podlaskie poland pond protection reed reserve rezerwat river sightseeing spring swamp tourism touristic travel tree trekking valley viewpoint village warmia water wetland wierciszewo wildlife wood