What you see is a subject that is very dear to me, it represents a truly interesting uniqueness, a bird together with a snake with the same head.
I "stole" it from a small ivory plaque carved on the Bamberg casket, which you can see by scrolling through the post.
It is very rare to find a snake like this, many of the meanings that the ancients "hid" in these artefacts are lost over time, but this encourages me to study more and more to look for what these hidden meanings could be in their complex symbolism. Why do you think it was done this way? :)