LBBG 5cy BBAF, August 01 2003, Zeebrugge, Belgium.

A blue ringed sub-adult LBBG, ringed as pullus in the colony of Zeebrugge, Belgium (51.21N 03.11E) on July 20 1999. It has a low primary moult score, with P3-P10 still old. Judged by the jizz, it is probably a female, with clear yellow bill and legs. The red spot on the bill continues on the upper mandible, while there is also a small black spot on the upper mandible. The yellow iris shows limited speckling.
BBAF was also seen on May 03 2003 and spend the complete breeding season in the colony.