All poultry keepers will be required to register their birds with Defra this autumn, even if they own just a couple of birds in a garden.. Currently, only those who keep 50 birds or more are required to submit their details. But as part of a move to tighten up on disease control in the wake of recent avian influenza outbreaks, this is being extended to all poultry keepers.   After registering their birds, keepers receive important updates, such as local avian disease outbreaks and information on biosecurity rules to help protect their flocks.  The register will also be used to identify all bird keepers in disease control zones, allowing for more effective surveillance.