New bird flu outbreaks in Orkney and North Yorkshire 18 December 2020 | The new, separate outbreaks both occurred in poultry Two new outbreaks of avian influenza have been confirmed in poultry in Orkney and in North Yorkshire, the government has confirmed. Avian influenza of the H5N8 subtype was found on Thursday (17 December) in a small commercial free range laying flock on Sanday, Orkney. Temporary Control Zones (TCZs) of 3 km and 10 km have been put in place, the Scottish government explained. The TCZs are temporary and will remain in place until the pathogenicity of the virus is identified. The zones place movement restrictions on poultry, carcasses, eggs and other things liable to spread disease.