The Bar-tailed Gotwit R3-WWYR was marked on the island of Terschelling, The Netherlands on May 15, 2007. It has since been reported frequently from Terschelling, and was found wintering near Iwik, Banc d'Arguin, Mauretanie (19°53'1.58"N, 16°17'46.28"W) in three subsequent years. This location is approximately 4150 km SSE of Terschelling.