Bird flu restrictions ease across most of the UK on Tuesday but experts say the H5N1 virus is still circulating, posing an ongoing risk to wild birds.
The requirement to keep poultry and captive birds inside ends as the threat to them is considered to have eased.
But the RSPB fears a repeat of last year's "catastrophic" toll on breeding colonies during the world's largest ever bird flu outbreak.
The government said wild birds faced " a significant threat" from the virus.