Classic IJmuiden harbour: European Herring Gull Green Y.BAX on his favorite lamp post against the backdrop of the heavy industry of IJmuiden. 14 July 2013.
European Herring Gulls congregating on the quays. IJmuiden, 14 July 2013.
My first flying juvenile European Herring Gull of the season. IJmuiden, 14 July 2013.
European Herring Gull in its 20th-calendar year, ringed as Arnhem 5249030. Also present today was a ringed 22-calendar year individual. IJmuiden, 14 July 2013.
Adult European Herring Gull with bare patches on the head. It was ringed as an adult in 2010 so unfortunately we don’t know it’s exact age. IJmuiden, 14 July 2013.
See also Are bare patches in Herring Gulls a sign of old age?.
Various pairs of European Herring Gulls could be seen choking today, including these 2 on a rooftop. IJmuiden, 14 July 2013.
The Herring Gull choking in the foreground is ringed as Bruxelles L-99798, a 13th-calendar year individual.
See also Gull behavior explained: Choking.