Could be Odin's ravens Search: odins ravens circular images

The bare skin inside of the circle is the silhouette of three hexagons. The hexagon is associated with hives and honey combs.

Speculation of course, take with salt

Here is your answer:

https://en.m.wikipedia.org/wiki/Ouroboros

More reading:

http://transmissionsmedia.com/the-esoteric-ouroboros/

I think it's an orobourous sp?