Large flock of waders in flight, Japsand, Schleswig-Holstein Wadden Sea National Park, Germany, April 2009  ,  BIRDS,EUROPE,FLOCKS,FLYING,GERMANY,GROUPS,L�szl� Nov�k,mass,NP,RESERVE,VERTEBRATES,wadden sea,WADERS,WWE,National Park  ,  Wild Wonders of Europe / Novák