Arctic tern with damaged beak

Arctic tern with damaged beak

Observation - Arctic tern with damaged beak - UK and Ireland. Description: Arctic tern on Farne Islands, with damaged upper mandible. The arctic terns here are well known for attacking visitors, some of whom wear hard hats or otherwise hold up other hard materials (e.g. walking poles) which the birds peck at. How likely is it th

Arctic tern on Farne Islands, with damaged upper mandible. The arctic terns here are well known for attacking visitors, some of whom wear hard hats or otherwise hold up other hard materials (e.g. walking poles) which the birds peck at. How likely is it that this bird damaged its beak whilst attacking a human visitor? Is anyone aware of any research that investigates the impact of Farne visitors on the birds?