I went to Landsort to photograph Arctic Terns and that's what I did, along with other species too of course. The Arctic Terns on the island are not numerous but they are very tolerant. They may have learned that people help to keep large gulls away. I noticed that when I approached the little colony all the Great Black-backed Gulls flew off while the Terns and Common Gulls were unconcerned. They let me know if I get too close but I get pretty close.