Thursday, October 24, 2013 at 5:57PM Larus canus canus
Common autumn and winter visitor, arriving in September and leaving in March
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society
Thursday, November 24, 2011 at 9:22PM Winter visitor
Both Mathew (1894) and Lockley et al (1949) described the Common Gull as a frequent autumn and winter visitor, a status which has not changed.
The birds begin to arrive from early August onwards, and are mostly adults, sometimes accompanied by birds of the year. The main winter population arrives in October, recoveries suggesting a northern European origin. For instance, one ringed in north Germany in July 1953 was recovered at Lamphey in February 1956 and another ringed at Skokholm in February 1956 was recovered in Norway in June 1957. Small numbers frequent the outer coastline and the estuaries but most forage widely across inland fields, commuting from the main roosts at Fishguard harbour, Cleddau Estuary and Amroth-Saundersfoot, with an average count total of about 4000 birds. Most depart during March with a few others passing through in April and May, while first year birds occasionally summer at the coast.
Friday, September 16, 2011 at 12:02PM 
The BTO winter atlas showed that Common Gulls were present in most 10km squares during the winters of 1981-82, 1982-82 and 1983-84.
The darker the colour, the higher the relative total count for each 10km square. The darkest blue represents up to 400 birds in a day.
Found extensively using wet pasture and newly ploughed land but all roosts reported were around the estuaries.
Graham Rees
Monday, February 28, 2011 at 11:14PM Species account from M Mathew, 1894, "The Birds of Pembrokeshire and its islands"
