Do parrots eat wild bird seed?

This depends on the size of the parrot. Large parrots such as sulphur-crested cockatoos are equally happy with sunflower seeds and corn, while smaller birds such as budgies prefer millet. Parrots will essentially eat all seeds: sorghum, barley, milo, etc as well as native grass seeds and the nuts of native trees such as gums and melaleucas.