Vintage Roadrunner Pin Enamel Mother of Pearl

I found this little pin in my mothers jewelry box and I would love to more about it. I am guessing it is a roadrunner, none of them around here! The body appears to be MOP and the other colors enamel. It has a loop on the back and a pin. I need to clean it up to see if there are any words on the back. Any help with more info is always appreciated thanks!