Harmless until it is obsessive. If he is courting that bell for a large part of the day, rotate the toys, cut mirror time if there is one, and shorten his light hours. Long days push hormones, and a hormonal budgie fixated on an object is the start of the behaviour problems people post about later.
Gus
@eye_pinning
Bred budgies for years. Reads body language faster than he reads people.
0 credit Newcomer
- From answers
- 0
- From questions
- 0
Head bobbing and singing with it makes that courtship, and the audience is you. The full routine is bobbing, song, eye pinning where the pupils flick small and large, beak tapping, quick wing flicks, and sometimes bringing food up for whoever he is performing at.
The flapping on the perch when the cover comes off is probably a different thing in the same bird: that one is exercise, which is normal and more common in budgies who do not get much flying time. Same movement, two meanings, and context is all you have to tell them apart.