Ar 6ed Rhagfyr, fel mesur rhagofalol, gorchmynnodd Ysgrifennydd Cabinet Llywodraeth Cymru ar gyfer yr Amgylchedd a Materion Gwledig gyflwyno Parth Atal yng Nghymru sy’n gofyn i geidwaid dofednod ac adar caeth eraill gadw eu hadar dan do, neu gymryd camau priodol i’w cadw ar wahân i adar gwyllt. Mae’r trefniadau hyn yn eu lle yn Lloegr a’r Alban hefyd.
On 6th December, as a precautionary measure, the Welsh Government Cabinet Secretary for Environment and Rural Affairs ordered the introduction of a Prevention Zone in Wales that requires keepers of poultry and other captive birds to keep their birds indoors, or take appropriate steps to keep them separate from wild birds. The same arrangements are in place in England and Scotland.