No. Xylitol, the sugar-free sweetener, causes dangerous drops in blood sugar and is considered highly dangerous to birds.
Keeper's noteCheck labels on sugar-free gum, mints, candy, and — critically — peanut butter. 'Birch sugar' on a label is xylitol under another name.
Why xylitol is dangerous for parrots
Xylitol triggers a rapid insulin release in many animals, crashing blood sugar to life-threatening levels, and has been linked to liver damage. Bird-specific data is limited, but given how small parrots are and how toxic xylitol is to other pets, every avian source treats it as a do-not-feed.
My parrot already ate some — what now?
Remove all remaining food from the cage, note what and roughly how much was eaten, and call an avian vet or an animal poison control hotline immediately. Do not wait for symptoms — early treatment makes the difference.