How rare are white Friesians?

It's tricky to give a definitive answer to how "rare" white Friesians are because there's no official registry or tracking system specifically for their coat color. However, we can consider these factors:

* Friesian horses are predominantly black: Black is the standard and most common color in the breed.

* White is a rare color in horses in general: While some breeds have specific white coat variations, white horses are less common than other colors.

* Friesians with white markings are more common than truly white Friesians: It's more common to find Friesians with white markings, like a blaze or socks, than those that are completely white.

Therefore, we can conclude that truly white Friesians are exceptionally rare.

Here's why this is likely:

* Genetics: White coat color in horses is often caused by a dominant gene that affects pigmentation. However, Friesians are bred for their black coats, so the gene for white is likely less prevalent in the breed's gene pool.

* Selective Breeding: Breeders often focus on maintaining the black color in Friesians for their distinctive appearance. This selective breeding could make completely white individuals less frequent.

While specific data on the prevalence of white Friesians isn't available, the combination of factors above suggests they are indeed a rare sight.