Ar 4 Ionawr, estynnais gyfnod Parth Atal Ffliw’r Adar iddo ddod i ben ar 28 Chwefror.  Gwnes hynny fel ymateb i’r achosion yn Sir Gâr a Lincolnshire mewn dofednod ac ar ôl cael hyd i’r Ffliw Adar Pathogenig Iawn mwn adar gwyllt marw ledled Prydain gydol mis Rhagfyr 2016, gan gynnwys chwiwell yn Sir Gaerfyrddin.  Estynnodd Lloegr a’r Alban eu Parthau Atal hwythau tan 28 Chwefror.
On 4 January I extended the period of the Avian Influenza Prevention Zone to end on 28 February. I did this in response to the Carmarthenshire and Lincolnshire cases in poultry and following findings of HPAI in dead wild birds across Great Britain throughout December 2016, including a wild duck in Carmarthenshire. England and Scotland also extended their Avian Influenza Prevention Zones to end on 28 February.