The reasons why the parrot keeps shaking its head:

1. If the parrot shakes its head after eating food or drinking water, it is normal. This is because the parrot wants to remove the edge of its mouth. Remaining food and water droplets.

2. Constant shaking of the head may also be a sign of illness. At this time, the breeder should pay attention and check the parrot's body, head, and excrement.

3. The medicines that have been given recently, if the medicines are given too much, will also cause the parrot to shake its head.

4. Parrots may also shake their heads after entering the breeding period. This is a normal physiological phenomenon during the breeding period of parrots.