It seems to be a group of Common Gulls sharing a meal with a Black Headed gull on the right.
No interactions present.
The bird on the right is a black-headed gull, the one with the white head.
...to the author of this sighting, he did say that at the top! :)
My Flickr photos...
Lat/Lng: 53.2, -9.1
OS grid ref: SE3297