An avian flu case has been confirmed after a swan was found dead in Cardiff Bay.
City council officials say a number of dead birds found at Roath Park Lak and Hendre Lake are also being tested for the H5N1 strain of the virus.
Last month, the Welsh Government told owners of more than 50 birds to keep them housed indoors, amid warning of a 'very high level' of the highly pathogenic diesease.
Cardiff Council is advising the public to avoid feeding wild birds in public places as it encourages them to gather, thus increasing the risk of transmission.
A spokesperson said: "It's very rare for the H5N1 strain of the flu to be passed onto humans, but as a precaution, please avoid contact with dead or sick birds."
"If you touch any dead birds, droppings, feathers or other material that has touched a dead bird, wash your hands thoroughly with soap and water as soon as possible."
Any sightings of dead birds should be reported to DEFRA / APHA online or by calling 03459 33 55 77.

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