Why does a Yorkshire Terrier Dig?
While not every Yorkie will love to dig, many will. The act of digging has been instilled into the breed for many, many generations. First used as hunting/ ratting dog, the Yorkie's main purpose in 1800's England was to chase after vermin and dig into burrows.
During the Victorian Era, this dog breed changed over from a hunting/ratting dog into a sought after companion/lap dog for Royalty and the upper class societies. However, the instinct to dig has somewhat remained.