What is this Bull Statue?

Hand-sculpted and formed. Made in a very primitive fashion. Not quite sure of its purpose. It has a hole in the front on one shoulder and a larger hole in the back on its rump. There is also a slit in the tail that leads to the hollow interior. All of these markings are intentional and NOT DAMAGE. I am not sure of why they are there but they definitely formed by the original maker.

Found at an estate sale near Richmond, VA.

Can I have ANY info on this piece? What is it? WHen was it made? Who made it? Anything!

Thanks so much in advance!