Information For Farmers On Animal Movements
You must register poultry flocks of 50 or more birds that you own or are responsible for. They don’t have to all be the same species. This applies even if your premises are only stocked for part of the year.
If you have fewer than 50 birds you do not need to register. You are, however, encouraged to register voluntarily so that Defra can contact you quickly if there is an outbreak of disease.