I have had one chicken named Pepper. He was a Game cock and he like Dr. Pepper. It was a accident to find that he liked it, but then we tested him about it. We poured Dr.Pepper and Mt. Dew simultaneously on the ground near him. He tasted both of them and jammed his beak in the Dr. Pepper.
It was hilarious, and my DH dubbed him Pepper. We tried him a time or two after that, but he always preferred the Dr. Pepper.