Danish authorities are culling 40,000 turkeys after a highly contagious variant of bird flu turned up on the island of Själland. Destroying the entire flock is standard procedure once the virus shows up in a commercial poultry holding. The aim is to cut off the infection before it spreads to neighboring farms or into the wild bird population. Movement restrictions and closer monitoring usually follow such a finding in and around the affected zone. Avian influenza waves have cost European poultry producers millions of birds in recent years. No further details about the farm or its exact location were given in the initial coverage. Producers in the region now face a wait to see whether any further cases emerge.