Sand Martins (Riparia riparia) at a breeding wall in Rheinfelden Aargau. Due to a lack of natural breeding sites on the Rhine, this sand wall, created by bird enthusiasts, is gladly used.
2026-05-03Sand Martins (Riparia riparia) at a breeding wall in Rheinfelden Aargau. Due to a lack of natural breeding sites on the Rhine, this sand wall, created by bird enthusiasts, is gladly used.
2026-05-03Uferschwalben (Riparia riparia) an einer Brutwand in Rheinfelden Aargau. Mangels natürlicher Brutmöglichkeiten am Rhein wird diese, von Vogelfreunden aufgeschüttete, Sandwand gerne angenommen.
2026-05-03
busy air trafficbusy air trafficreger Flugbetrieb
Sand Martins (Riparia riparia) at a breeding wall in Rheinfelden Aargau. Due to a lack of natural breeding sites on the Rhine, this sand wall, created by bird enthusiasts, is gladly used.2026-05-03Sand Martins (Riparia riparia) at a breeding wall in Rheinfelden Aargau. Due to a lack of natural breeding sites on the Rhine, this sand wall, created by bird enthusiasts, is gladly used.
2026-05-03Uferschwalben (Riparia riparia) an einer Brutwand in Rheinfelden Aargau. Mangels natürlicher Brutmöglichkeiten am Rhein wird diese, von Vogelfreunden aufgeschüttete, Sandwand gerne angenommen.
2026-05-03