Pelicans And Great Cormorant Birds Resting And Flying At The Danube Delta In Romania - View From A Boat - wide shot

danube delta great cormorant pelicans pelican bird dalmatian pelican black shag migration migrating resting flying rippling water romania grass flight grey heron heron reeds boat cruising national geographic nat geo animal planet nature natural european white water lily habitat environment behavior animals nymphaea alba white water rose aquatic plants river freshwater danube delta river delta white nenuphar europe waves waterway wetland tourist tourism summer