* American Quarter Horse: These are the most common breed in the books. They are known for their athleticism, versatility, and calm temperament.
* Morgan: These are another common breed, particularly in the earlier books. They are intelligent, agile, and known for their strong work ethic.
* Appaloosa: This breed is known for its distinctive spotted coat and is often depicted as having a strong connection with the main character, Amy Fleming.
* Thoroughbred: These horses are known for their speed and racing prowess. They are represented in the books through horses like Spirit and Lightning.
* Arabian: This breed is known for its endurance, beauty, and intelligence. It is often depicted as having a strong bond with the characters.
* Paint Horse: These horses are known for their colorful coat patterns and are often depicted as being energetic and playful.
It's important to note that the specific breeds of the horses in the Heartland books are not always explicitly stated. The author often focuses on the individual horses' personalities and their relationships with the characters.
If you are interested in learning more about the breeds in the Heartland books, you can check out the author's website, where she often provides details about the horses she uses in her stories.