Help prevent the spread of avian botulism

We are aware that unfortunately, some dead swans and ducks at Barnes Pond have been found with suspected avian botulism as the cause.

This is a frequent occurrence during warmer periods, when environmental conditions can allow the bacteria responsible for botulism to thrive in natural water bodies.

Avian botulism is a naturally occurring toxin that affects waterfowl, often spreading rapidly when birds congregate closely or when food sources encourage unnatural crowding. Once present, it can lead to severe illness and death among affected species. Botulism in dogs and cats is relatively rare however both species are potentially susceptible.

Please help us contain the spread.

The most effective action you can take right now is not feeding the birds and keeping pets out of the water. 

Feeding encourages large gatherings, increases competition and can worsen water quality - conditions that allow botulism to proliferate.

Our teams are actively monitoring the situation, removing affected birds and working to improve local water conditions. Your help is essential in protecting local wildlife. 

For further information, see Avian botulism in UK wild waterbirds - GOV.UK.

To report additional sightings of sick or dead birds, please contact us: 020 8891 1411