The Huntaway (also known as the New Zealand Huntaway) is a large, strongly-built breed of dog used for general sheep-herding tasks in New Zealand, where they originate. They were bred to use their loud, deep bark to drive sheep.
The breed dates from the late-19th century, and is distinguished only on working ability. There is no prescribed appearance or lineage, but they are usually black-and-tan coloured. Only dogs that win at trials may be registered by the New Zealand Sheep Dog Trial Association in their studbook.
Image credit: Cgoodwin, CC BY 3.0
Adapted from Wikipedia, CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Huntaway