The Coffin Bay Brumby (formerly known as 'Coffin Bay Pony') is an Australian breed of a small, semi-feral horse.

From Timor ponies to Coffin Bay Brumbies:
The Timor (see 'Timor Pony') is an Indonesian pony breed, which was often brought to Australia during the 19th century as part of the British colonization efforts. Sixty such ponies were brought to Australia in 1839 by Captain Henry Cowell Hawson, and in 1947 they were moved permanently to Coffin Bay Run where they were bred and sold to new owners.

Ten years later, the run was sold to William Ranson Mortlock, who introduced large stallions to the Timor herd in order to increase the herd's physical size. This was the beginning of the Coffin Bay Brumby breed.

Over the next century, the herd continued living on the run, sometimes being bred in a managed manner, sometimes being left to bred wild, completing their transition from a Timor pony to a small, Coffin Bay Brumby. The run changed hands, horses were trained and sold, but it all nearly came to a stop in 1972 when the run was declared a national park.

From the Coffin Bay Run to the Brumbies Run:
The declaration of Coffin Bay Run as part of a national park sparked a long series of negotiations between South Australia's government and the Coffin Bay Pony Society. The government wished to remove the horses from the land in order to prevent them from further destroying the natural wildlife, while the society insisted that the ponies should stay and that they won't harm the wildlife.

An agreement was eventually reached in 1991, and stipulated that the society will manage the herd's size to not exceed twenty mares, one stallion, and foals. It all worked well until 2003, when the horses were declared to be removed from the land. The society did not waste time, and in 2004 it moved the herd to a new, protected preservation which will be its forever home: Brumbies Run.

From a 'Pony' to a 'Brumby':
In 2008, the breed's name was changed from 'Coffin Bay Pony' to 'Coffin Bay Brumby' due to two reasons. First, the physical size and conformation of the breed were closer to that of a 'galloway', an Australian term for small horses who stand between 14hh and 15hh. Second, the breed is also overseen by the Australian Brumby Alliance, a society which promotes the conservation of brumbies in Australia.

That said, the Coffin Bay Brumby should not be confused with the Australian Brumby which is a different breed (see 'Brumby').

The Coffin Bay Brumby today:
Today, a small herd of Coffin Bay Brumbies still roam in Brumbies Run. As part of managing the herd's size, horses are removed from the herd when necessary and receive basic training before being sold to their new owners.

Other than this, the herd is left to roam freely in semi-feral conditions in the preservation which is open for visitors.

Conformation:
There is no official standard for the conformation of Coffin Bay Brumbies, and therefore, in Horse Isle, their conformation was determined based on available pictures taken by the Coffin Bay Brumby Preservation Society.

Coffin Bay Brumbies have a head with a squarish muzzle, a straight or slightly concave profile, and ears that can be curved inwards. The neck can have an 'ewe' conformation, with its crest varies from minimal to heavy. The withers are prominent, the croup is sloping, and the hindquarters are angular. The body can be narrow, and its overall structure resembles more that of a horse rather than a pony.

The mane is short or medium in length, and the legs are clean of feathering.

Performance metrics:
The following are the: range, average, (SD), and MOE of performance metrics of ordered Coffin Bay Brumbies in Horse Isle (not bred ones). In rare cases, horses might have metrics outside of the range. Breeders can produce horses that are beyond this range.

Speed: 14.0-15.5, 14.7 (0.3), 0.07.
Sprint: 31-44, 37 (2), 0.47.

Accel: 0.75-0.93, 0.83 (0.04), 0.01.
Decel: 0.73-0.89, 0.81 (0.03), 0.01.

Jump: 4.94-5.20, 5.05 (0.06), 0.01.
Pull: 1.26-1.89, 1.50 (0.12), 0.02.

Turning: 39.18-52.10, 45.26 (2.96), 0.58.
Reverse: 2.2-2.8, 2.5 (0.1), 0.03.

Stamina: 43.62-48.87, 46.08 (1.00), 0.2.
Reaction: 0.66-0.77, 0.72 (0.02), 0.00.

Coats & Height:
Colors: usually bay or grey, but also black, brown, and chestnut.

Additionals: flaxen, sooty, mealy. Markings can occur on the face and legs, but are not as extensive.

Height: 12.3hh to 14.2hh