If peony parrots always lay white eggs, there may be some of the following reasons and solutions:

Lack of matching : Make sure your parrots are in a suitable pairing and that both male and female parrots are of healthy breeding age.

Dietary Issues: Provide a balanced diet that includes nutrient-dense foods to ensure your parrot's good health.

Unsuitable environment: Check that the size and environment of the birdcage are appropriate and provide adequate privacy and quiet space.

Lack of breeding experience: Sometimes, parrots may need some time to learn and adapt to the breeding process. You can try providing some simulated nest materials, such as hay or wood chips, to help them establish the feel of a nest.

Health Issues: Take your parrot to the veterinarian regularly to make sure they are in good health and do not have any underlying diseases.