Larus glaucoides
Estimated number of individuals per year - as birds move around, it is often impossible to be certain about totals.
2007 was an exceptional year with 61 individuals recorded in Wales, with 29 in Pembrokeshire alone. Many stayed into early 2008, including 5 first winter birds roosting together at Llys-y-fran reservoir.
2102 - An influx in January-March (seen across north-west Europe) was linked to a stormy period of north-westerly winds during the last week of 2011.
2014 - Large influx starting mid-January with some individuals staying until the end of February
Records extracted from the Pembrokeshire and Welsh Bird Reports