Alert close - icon Fill 1 Copy 10 Untitled-1 tt copy 3 Untitled-1 Untitled-1 tt copy 3 Fill 1 Copy 10 menu Group 3 Group 3 Copy 3 Group 3 Copy Page 1 Group 2 Group 2 Skip to content

Avian influenza (bird flu)

Avian influenza is a highly infectious disease affecting many species of birds, including poultry, wild and pet birds.


As a result of recently confirmed cases of avian influenza, Great Britain is no longer free from highly pathogenic avian influenza.

Extension to avian influenza prevention zone

In response to the increased number of cases of highly pathogenic avian influenza in poultry in new areas of the country and the continued heightened risk levels in poultry and kept birds, the avian influenza prevention zone (AIPZ) is being extended to mitigate the risk of further outbreaks of the disease.

An AIPZ mandating enhanced biosecurity but without mandatory housing came into force at midday on Saturday 25 January 2025 across England.

The AIPZ measures apply to all bird keepers whether they have pet birds, commercial flocks or just a few birds in a backyard flock and are essential to protecting flocks from avian influenza.

Bird keepers are advised to consult the interactive map of currently active avian influenza zones to check if they are impacted, and should then read the AIPZ declaration schedule relevant to their area.

The AIPZs will be in place until further notice and will be kept under regular review as part of the government's work to monitor and manage the risks of avian influenza.

Gatherings of all poultry and other captive birds including ducks, geese and swans remain permitted. You'll need to follow the requirements of the poultry gathering general licence and notify the Animal and Plant Health Agency (APHA) at least 7 days before the event.

Find out more about the latest bird flu situation in England and guidance for bird keepers and the public.

Signs of avian influenza and how to report it

The signs of avian influenza and details of where to report suspected cases in poultry or other captive birds are on the DEFRA website.

Wild birds

You can report dead sick or injured wild birds or get advice on what to do with dead wild birds that are not collected for testing.

Register your flock

You must register within one month of keeping poultry or other captive birds at any premises in England or Wales.  This includes any birds as pets.  You are breaking the law inf you do not register. View the Poultry Registration Forms.