What is a butterfly nose?

A butterfly nose is characterized by having patches of pink and black. This unique coloration typically occurs in certain breeds and can add to the distinctive appearance of a dog. The presence of both colors gives it the resemblance to the wings of a butterfly, which is how it acquires its name. This feature is more about aesthetic variety in dog coats and is seen in breeds like the American Staffordshire Terrier. The experience of these two colors together is what defines a butterfly nose, differentiating it from other types of nose pigmentation.

Noses that are entirely black, entirely white, or have no pigmentation do not exhibit the mixture of colors that characterizes a butterfly nose, making them different from the specific description of the question.