Chickens in a field
Birdkeepers must follow enhanced biosecurity measures including reporting changes in egg production and reporting suspected disease immediately. Photograph: Jim Holden/Alamy
Birdkeepers must follow enhanced biosecurity measures including reporting changes in egg production and reporting suspected disease immediately. Photograph: Jim Holden/Alamy
Bird flu fears prompt orders for farmers to keep poultry inside in England and Scotland

Increased risk of devastating strain means restrictions imposed for second year in a row on those keeping birds