pied avocets feeding at low tide on wadden sea near den oever, north holland, netherlands

animals avocet birds black white blackcapped den oever dutch eurasian europe european feeding flock group holland low tide mud flat mudflat nature reserve netherlands noordholland north pied recurvirostra avosetta saltwater flats sea shallow water shore shorebird summer tidal wadden waddensea wader wading bird wetland wild wildlife