Crawley Borough Council is urging residents to not touch sick or dead birds after a bird flu case was confirmed in the area.
The case was confirmed by the Department for Environment, Food and Rural Affairs (DEFRA) after a swan died at the Millpond in January.
The swan died from a variant that is of a low risk of transmission to humans.
If a member of the public finds dead birds, they should report them to the DEFRA helpline.