Arctic Terns

They are pugnacious defending their nest and so come at you, even sometimes hitting your head. However it is a quick process and so before and after this shot, I have got lots of images of either a blank, very dull grey sky or a fuzzy white blob. Two out of eighteen shots were half decent....
Migrating from Scotland to the Antarctic  seas, they are reckoned to be one of the longest distance migrants of all but they still manage to look delicate.