Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

Lesser Black-backed Gull intermedius J798R 2CY, July 21 2017, Katwijk, the Netherlands.

CR-Code Black ring with white code: J798R LBNW(J798R);RBM
Ringing Centre Stavanger Museum (Norway) Ring number 4278198
Species Lesser Black-backed Gull (intermedius)  Larus fuscus intermedius
Sex Unknown Age Pullus

Bird with extensive post-juvenile moult, which included most of the wing-coverts, tertials, several inner secondaries and all rectrices, now 2nd generation.
This summer the complete moult started, picking up moult in the outer coverts which were retained juvenile, and primaries. Moult stage: P4/P7, P5 growing.