What signature physical mannerism is characteristic of the Eastern Phoebe when perched?

Answer

A gentle, metronomic tail-wag

The Eastern Phoebe is recognized by observers partly due to its signature mannerism: a gentle, metronomic tail-wagging action while it is perched.

What signature physical mannerism is characteristic of the Eastern Phoebe when perched?
behaviorbirdanimalhumanPhoebe