I am joining Derick Hiemstra and Klaas van Dijk in the Eeemshaven to observe and ring Arctic Terns. In this industrial area, activity is low and Arctic Terns have started breeding. On this location the world champions migration distance were equipped with a geolocator two years ago and recaught one year ago. Today Derick and Klaas are doing their normal checks. They read colour rings but also metal rings from terns. Than we continue catching and ringing some breeding pairs. All this is part of my preparation for this summer field season on Spitsbergen.