resting and foraging ducks in waddenzee, ameland

ameland biological bird birds boat brackish channels coast coastal dry duck ducks dutch ebb ebbtide environment europe european fauna ferry flat fly flying forage foraging friesland habitats holland horizon interactions intertidal island landscape low marsh marshes mud mudflats natural nature netherlands outdoor outdoors outside panorama physical reserve rest resting salt sand sandbanks sandbars sandy sea shoals shore tidal tide undisturbed vessel wadden waddenzee water wet wetland