People have been warned against feeding the birds in Caerphilly after a number have been spotted dead and unwell. Locals reported seeing a number of deceased swans, ducks and geese outside the castle as well as in Morgan Jones Park.
Cadw - the Welsh Government body responsible for the castle - has erected a sign in the area telling the public to stay away from dead or ill birds. It states: "Warning for the prevention of avian flu contamination: Please do not feed the birds or touch any dead animals. Dogs must be kept on leads and away from the water. All dead birds need to be reported to Caerphilly Castle. Thank you for your cooperation."
One local said she counted 15 dead birds in the area on Monday morning. Another described seeing birds that appeared unwell, however the birds' cause of death has not yet been confirmed. Cadw has referred the matter to the Department for Environment Food and Rural Affairs (DEFRA).