Figure 3. Map of the 2016 reconstruction plan for Griend. A new sand suppletion was developed on the west side of the island (light grey) with shell ridges places on the borders (dark grey). Sod was removed in the center (blue), a washover (orange) was created in the north and dune ridges (green) were lowered on the dike in the north. (Photo: Cris Toala Olivares) Figure 4. The area that is recognized as the East Atlantic flyway is marked by the shaded area (Davidson & Pienkowski 1987) Chapter 2 Sanderling diet in the Wadden Sea 24