LBBG 5cy ACAR, August 15 2003, Westkapelle, the Netherlands.

A blue ringed sub-adult LBBG, ringed as 1cy in the colony of Zeebrugge, Belgium (51.21N 03.11E) on July 02 1999. It has a rather low primary moult score, with P1 fully grown and P4-P10 still old. As can be expected, moult in the wing-coverts mirrors this low primary moult score, with just the outer median coverts shed (the first replaced wing-coverts in the ordinary sequence).