 Groups promoting sabino color have a more generous definition; the Sabino Arabian Horse Registry considers a "Maximum" Sabino to be a horse that is over 50% white.Breed standards that recognize the sabino pattern include the Mustang, American Paint, Miniature horse, Morgan, Hackney (and Hackney pony), Tennessee Walking Horse, and the pinto color breed registries.Horse breeds that are generally solid-colored and do not allow most pinto coloring in their breed registries, but who may have representatives with the sabino gene pattern expressed by high white, belly spots, lacy or roaning patches and white extending past the eyes include the Clydesdale, Arabian, Thoroughbred and Shire.