The emergency services will be tested today during an exercise at Wylfa nuclear power station on Anglesey.
The test will check the response of all the emergency services in the event of an incident involving the transport of radioactive material.
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Visitors to the centre can get a close-up look of the birds, which have been breeding in the area since 2004.
A public inquiry into undercover policing in England and Wales is to be formally opened today.