This national survey is ongoing.

2021 is the final year of the national census of urban nesting Gulls, which is part of the 4th UK seabird census (called the Seabird Count) which has been running since 2015. The census has been developed by the Seabird Monitoring Panel (SMP) and is coordinated by the Joint Nature Conservation Committee (JNCC), managed by national organiser Daisy Burnell and a team of county organisers for which I volunteered for Hertfordshire. Full details of the Seabird Count can be found at and


It is known that these Gulls (Herring and Lesser Black-backed) nest on buildings in several areas of the county including Watford, Hemel Hempstead, St Albans and Borehamwood, but there has been expansion into other areas over recent years. A total of 109 1km squares was randomly selected in Herts from all those containing suitable urban buildings on which Gulls might nest. Volunteers were asked to visit these squares to look for breeding Gulls and to count the number of pairs of each species if found.

Go to Herts Squares for 2021 JNCC Urban Gull Survey to view the remaining squares to be covered after the 2019 survey effort. It would be great if members could look and see if any squares are near to where they live or work and are able to survey. 

If anyone wishes to take part please contact me at