When rigging I have treated the front shoulders and the back pelvis both as pelvis joints. Afterwards I have parented the back pelvis to the tail control so the tail will rotate with the back of the pelvis and the front shoulder joint to the chest control to make the spine interact with the pelvis and shoulders.
I was thinking about rigging the ears like the tail rig but was unsure whether to or not. Also when I scale the back of the tail doesn't seem to scale with the rest of the geometry it seems to move instead and I am unsure why. The same happens when I move the Hyena in the translate using the world control too.