Nearly two million birds have now been culled at 58 premises with confirmed avian influenza.
The latest case of (HPAI) H5N1was confirmed yesterday in poultry at a commercial layer site with over 700,000 birds on site near Alford, Lincolnshire.
All birds on the infected premises will be humanely culled.
A 3km Protection Zone and 10km Surveillance Zone has been put in place around the premises.
About half the cases detected so far have been in commercial flocks of differing sizes, with the rest in backyard flocks, wildlife centres or other small collections of captive birds. The commercial flocks have been a mix of commercial layers (free range and colony), turkeys (seasonal, commercial and breeders), broiler breeders and a few duck flocks.
Epidemiological investigations are continuing into the pattern of the outbreaks, but most seem to be separate individual incursions, except for a few that are in very close proximity to each other.
Full details of the affected areas can be found in the APHA map below.