Several 1st winter Great Black-backed Gulls have been hanging around the lake this spring. I'm guessing they are the offspring of the adult pair of GBBG that Geoffrey captured so nicely sharing their fish dinner the other day. Here they are in what I'm thinking is a sibling spat, or horseplay.
Great action image Bill. Awesome low angle and I like the pattern made by the gull's wings. (Might be my screen but imo the gull's could do with a bit more sharpening)