What does a birthmark of a horse mean?

A birthmark on a horse, often referred to as a "whorl," can indicate unique genetic traits and may be used for identification purposes. These markings can vary in size, shape, and location, and while they don't have specific meanings, they are often associated with the horse's lineage or breed characteristics. Some people believe that certain patterns can reflect the horse's temperament or abilities, but these beliefs are largely anecdotal. Ultimately, birthmarks are just one of many features that contribute to a horse's individuality.