As I recall there were more like four or five gulls involved in the chase, but at any given moment only one or two got close enough that they were in the frame. However, the sheer numbers made it all the more difficult for the eagle to maneuver out of their range or above and behind them to where he was a threat.
The next shot after this one, chronologically, has already been posted (
https://www.birdforum.net/gallery/showphoto.php/photo/644623/ppuser/85173) as well as a close crop of the same, posted the same day. I'll skip those now and move on ...
