Arctic Terns seem to be doing reasoanbly well with lots bring in fish, although they are small pilltocks
I first thought only 50-60 pairs had turned up down at Grutness but now with lots of birds in the air i suspect more like 400-500 pairs
photographing terns from the beach
These are difficult to count as they nest among boulders, with Common Gulls nesting between them
Some birds are more aggresive than others
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