Brumbies are feral horses that roam free in Australia. Although bands of brumbies are found throughout the continent, the most well-known populations are found in the Northern Territory and Queensland.
Like many invasive species in Australia, brumbies are the descendents of escaped, released or lost animals that date back to the time of the first European settlements on the continent.
Due to the serious ecological threats they pose to native plants and wildlife, they are generally considered pests. But as with any population control methods for invasive species, the subject of brumby management is mired in controversy.