https://yamcode.com/why-is-suz....ie-the-yorkie-puppy-
Buy Duxi Yorkshire Biewer? The Biewer Yorkshire Terrier was created by the rare recessive gene in 2 Yorkshire Terriers. The parents of the Biewer Yorkshire Terrier produced the pied puppy (normally Yorkies are slate grey and tan, or cream, and Merle). The piebald puppy was a hit with breeders Werner and Gertrud Biewer, who started breeding Yorkshire Terriers to produce more puppies with the white markings. In 2014 the breed was so perfected that it was recognized as a distinct breed by the AKC Foundation Stock Service. Charac