I chose to pick a spot on the path where a few of the Terns were quite feisty. As people approached, they took to the air and made an assault on their heads. I took this as my opportunity to try and get some shots. It proved quite difficult. As you can see below, lots came out with the bird not fully in the frame. I gave up here and tried another area.
I found a different area on the island where the birds were coming in off the sea, and had a little more success. The light was much better, the birds were more relaxed, and this made it easier to predict their movements. It meant I could follow them and have a pretty good idea where they were heading next and where I should aim my camera. I was happier with these shots.
My best of the lot (in terms of flight shots) were taken when I moved down to the shore line to watch them.