This is the largest Irish gull and has a wing span of up to 160 centimetres

Surveyors acting for the National Parks and Wildlife Service were swooped upon by agitated seagulls during the course of their work

The council said: “Seagull species are protected under the EU Birds Directive."

Seagulls wearing GPS backpacks have revealed that the urban birds have fined-tuned their foraging schedules to human activity in cities.