A FURTHER outbreak of avian flu has been confirmed in North Yorkshire. The Department for Environment, Food and Rural Affairs (Defra) said the H5N1 strain had been found in a backyard flock of chickens near Hawes, in Richmondshire yesterday. Further genetic analysis is underway to confirm whether this is the same strain that has been previously found in wild birds. A 3km and 10km Temporary Control Zone and 10km Temporary Movement Restriction Zone have been declared around the premises. Last month, more than 10,500 turkeys had to culled at a farm near Northallerton after a strain of bird flu was discovered.