Highly pathogenic avian influenza H5N1 has been confirmed at a premises near Holy Island, Berwick Upon Tweed, Northumberland. More information is available on GOV.UK: https://www.gov.uk/bird-flu
Definitive requirements are set out in the published declarations for each disease control zone currently in force.
For further information see the ‘Cases and disease control zones’ section on GOV.UK: https://www.gov.uk/guidance/avian-influenza-bird-flu-cases-and-disease-control-zones-in-england#cases-and-disease-control-zones
You can also check if specific areas are in a zone by using the interactive map available on GOV.UK: