The restoration of nesting walls in Bátorové Kosihy was prepared and carried out in close cooperation with the local administration office, the mayor and local organization “Brehuľa” (Sand Martin). Information pannels informed the locals about the ongoing works. The nesting locality was used by a colony before the reconstruction, but parts started to overgrow with vegetation and eroded. During the restoration the walls were enlarged in width and height and there improved the nesting conditions significantly. The wall height as well as a wetland located right under the wall were restored as part of activit C.4.