The Bumby is a breed from?

The brumby is the Australian wild horse. They are not true wild horses but ferals descended from settlers' horses (and those that came later) that escaped or were freed. There is no set type in the breed; their characteristics vary depending on where they live and which breeds they were descended from. They are all, however, tough, intelligent and spirited. Many outstanding Australian Stock Horse bloodlines contain a large proportion of brumby blood.