This was our third shoot in 5 days, at the same location with the seagulls. They know us!
A relationship is evolving.
Today the birds almost immediately got into a circular flying formation, with little coaxing. The previous shoots required about 10 minutes to get the birds to start flying overhead.
It is still difficult to get the seagulls to circle in the exact direction I want them to fly. Ideally, they would fly into the sun, giving me a great shot of their faces. I suspect it is the wind conditions that determine the direction that the birds prefer to circle.