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Blue Merle Australian Shepherd: Facts, Pictures, Origin & History

Written by: Brooke Billingsley

Last Updated on June 1, 2024 by Dogster Team

Australian Shepherd

Blue Merle Australian Shepherd: Facts, Pictures, Origin & History

Australian Shepherds are a popular dog breed among people who keep livestock and people with active lifestyles. Sometimes, they are confused with Border Collies, but their sturdy bodies and thick, fluffy coats don’t really resemble the Border Collie.

Breed Overview


18–23 inches


35–70 pounds


13–15 years


Black, red, merle, red merle, blue merle, tricolor

Suitable for

Homes with yards, families with and without kids


Friendly, loyal, affectionate, playful, intelligent, trainable

There are multiple color varieties of this dog breed, and one of the most sought-after is the blue merle. Blue merle’s popularity comes from its eye-catching look and beautiful blue eye color that it is typically accompanied by.

There are some interesting and important things you should know about the blue merle coat in Aussies.

Australian Shepherd Characteristics

High-energy dogs will need a lot of mental and physical stimulation to stay happy and healthy, while low-energy dogs require minimal physical activity. It’s important when choosing a dog to make sure their energy levels match your lifestyle or vice versa.
Easy-to-train dogs are more skilled at learning prompts and actions quickly with minimal training. Dogs that are harder to train will require a bit more patience and practice.
Some breeds, due to their size or their breeds potential genetic health issues, have shorter lifespans than others. Proper exercise, nutrition, and hygiene also play an important role in the lifespan of your pet.
Some dog breeds are prone to certain genetic health problems, and some more than others. This doesn’t mean that every dog will have these issues, but they have an increased risk, so it’s important to understand and prepare for any additional needs they may require.
Some dog breeds are more social than others, both towards humans and other dogs. More social dogs have a tendency to run up to strangers for pets and scratches, while less social dogs shy away and are more cautious, even potentially aggressive. No matter the breed, it’s important to socialize your dog and expose them to lots of different situations.

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The Earliest Records of Blue Merle Australian Shepherds in History

The Aussie breed was developed in the United States in the 19th century, likely from herding dog stock, likely Collies, that came from Spain. Blue merle has existed as long as the Aussie breed has. Many herding dogs came to the United States from Australia, which may have led to this breed’s name.

However, people who have studied the history of this breed believe the name may be a misnomer and the dogs were bred from the European herding dogs.

australian shepherd enjoying the outdoors during autumn
Image By: dodafoto, Shutterstock

How Blue Merle Australian Shepherds Gained Popularity

Initially, Aussies were kept by ranchers in the American West because of their great herding ability. Whether it was cows, sheep, or wild horses, the fearless Aussie was prepared to work.

As ranches became less popular due to development and more job opportunities, the Australian Shepherd became a popular pet. The Blue Merle Aussie was and has remained, a very popular color in contrast to the other breed standard colors, red, red merle, and black. Some of the colors may have tan points, but it is uncommon in blue merles.

In the majority of cases, though, the blue merles do have white patches and points across the body.

Formal Recognition of Blue Merle Australian Shepherds

Although the breed originated in the 1800s, the Aussie was not added to the AKC’s list of recognized dog breeds until 1993. It was then that Aussies were added to the herding group and began showing. Since the beginning, blue merle has been a standard and acceptable color in the breed.

sick australian shepherd dog lying on grass
Image by: EvitaS, Pixabay

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Top 5 Unique Facts About Blue Merle Australian Shepherds

1. The Blue Merle Aussie has similar personality traits to any Australian Shepherd

There are no temperament or personality traits that are specific to the blue merle color pattern in Australian Shepherds.

2. Some breeders have begun up charging their blue merle pups

Some breeders have started charging more for blue merle puppies, with the highest fees often being associated with puppy mills and backyard breeders.

Image by: Fluff Media, Shutterstock

3. Aussies are at risk for an eye condition called coloboma

This involves a malformation of the iris that keeps it from dilating and contracting properly, which can lead to sensitivity to bright lighting. This condition is not specific to Blue Merle Aussies, although some people do mistakenly associate it with the coat color.

4. There are four subcategories of blue merle Aussies

The four subcategories are blue merle and tan, tri-color blue merle, blue merle and white, and the solid blue merle. All of these patterns are associated with blue eyes, often with brown flecks throughout.

Blue Merle Aussies can also have brown eyes with blue flecks, but this is less common.

Merle Australian Shepherd
Image by: Asiabasia, Pixabay

5. The blue merle gene is an incomplete dominant gene

Only one copy of the gene is required to produce the color. Breeding two blue merle, or any shade of merle, dogs together results in double merle. Double merle is often associated with eye problems including blindness, deafness, and a mostly white coat. Breeding two merle dogs of any breed together is a hallmark of an irresponsible breeder.

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Does the Blue Merle Australian Shepherd Make a Good Pet?

Since Blue Merle Aussies do not have a tendency toward different temperaments than other shades of Australian Shepherd, we’ll discuss ownership of this lovely breed.

Aussies are a fantastic breed of dog, often whip-smart and highly driven by an instinct to herd. They are high-energy dogs that are not for the faint of heart or the inactive dog owner. Aussies need lots of exercise and are excellent partners for jogging, hiking, bikejoring, and canine sports.

Due to their instinct to herd, many people report their Aussies attempting to herd everything from cats to children to lawnmowers. They may nip at the heels of children in an attempt to herd this, and this is often misconstrued as an aggressive action. An Aussie who is herding things or people around the house is likely bored and full of pent-up energy.

Australian Shepherd dog puppy with toy
Image by: gesango16, Shutterstock

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Summing Up

The Blue Merle Aussie is a beautiful dog that is highly prized by many. While there are no true differences between Blue Merle Aussies and other colors of Aussies, it is important to understand the dangers of breeding two dogs that carry the merle gene.

Double merle can lead to a difficult life for the offspring of the breeding, and crossing merle dogs is not something that responsible, ethical breeders do.

Featured Image Credit: Petra Heike Laicher, Pixabay

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