Figure 1.
Collecting GPS data of Eurasian oystercatchers using the UvA-BiTS system. a mistnets at a high tide roost site on Vlieland, with which birds were trapped b Eurasian oystercatcher equipped with colour-rings and UvA-BiTS GPS tracker c installation of a relay station via which data from trackers could be retrieved d a high tide roost site of Eurasian oystercatchers, showing a relay station in the background.
