Parrot feathers are unhealthy.

Cut to the chase and see the answer. This parrot is ill. In daily feeding, if you see budgerigar's hair blown (another name for fluffy feathers) or its head turned (budgerigar sticks its head under its wings), these are all signs that budgerigar is sick. At this time, we should pay attention to the following points:

1. Keep warm. Just don't let the cold wind blow to budgerigar, because whether it is diarrhea or a cold, you should pay attention to keep warm.

2. Stop eating vegetables, fruits and greasy food.

3. Observe whether there is diarrhea or runny nose in the stool, and consider giving some anti-inflammatory drugs appropriate intervention.

The above is only personal farming experience, for reference only. No wonder bird friends make mistakes in the discussion. I hope it helps you.