Whilst contemplating the destination of my usual Sunday morning excursion I had a recollection that around this time in previous years, gulls, mainly herring, were starting to congregate on their breeding site on the roof tops around Asda Brynmawr. And so it proved to be up to 60 birds were present on the undulating asbestos roofed redundant industrial building. My main objective was to check for colour ringed birds but on scanning the legs of herring gulls one stood out as not being pink.
This was my first yellow-legged gull in the north of the county and followed the Iceland gull found on the same building last February. The above photo illustrates some of the contrasting features between the yellow-legged and herring. Note the yellow legs, darker mantle, and bulkier head and neck form.