Members of the public should not touch or pick up any dead or visibly sick birds and keep their dogs on a lead to avoid them coming into contact.
Ni ddylai aelodau'r cyhoedd gyffwrdd ag unrhyw adar marw neu sy'n amlwg yn sâl, na’u casglu, a dylent gadw eu cŵn ar dennyn er mwyn eu hatal rhag dod i gysylltiad.