Moogie, have you ever tried a beetroot dip? Sound pretty off, but tastes just great! Would have to arm-wrestle one of my delightful in-laws for the recipe though. She keeps it under lock-and-key.
We are not Vets, Avian or otherwise. If you have any serious doubts about your budgies' health an appointment with an Avian vet should always be your first point of call.