LBBG 4cy L- 87262, August 01 2003, Zeebrugge, Belgium.
A metal ringed adult LBBG, ringed in the colony of Zeebrugge, Belgium. Ringed as pullus at Zeebrugge (51.20N 03.11E) on June 16 2000. It has an advanced primary moult score compared to adults, with P6-P10 old and P5 shed. Judged by the jizz, it is probably a female, with a clear yellow bill and pale yellow legs. The red spot on the bill is confined to the lower mandible and there is a small black spot on the upper mandible. The white-yellow iris doesn't show speckling.