This Common Gull was marked in May 12, 2002 while breeding at a nest at the Vistula (Wisla) River, near village of Wroble, Maciejowice, ca.100 km south from Warsaw, Poland (51 38'N, 21 38'E). It was found breeding in the same region in 2004. The measurements suggest this bird to be a female. The ringing place was approx 1180 km ESE of the observation place.