Is oregano oil safe for treating parrots who pluck their feathers?

Oregano essential oil is toxic to parrots and should therefore never be used to treat them, regardless of the cause.

Parrots are sensitive to the volatile oils found in oregano, and these oils can cause internal damage and even death if ingested.

Essential oils should never be given to a parrot, unless they are specifically recommended and provided by a veterinarian.