Australian Shepherd
Despite the name, the Australian Shepherd was developed almost entirely in the United States, likely descending from Basque shepherd dogs that arrived in America via Australia in the 19th century — the "Australian" refers to the dogs' point of origin, not the breed's development.
Photo: Wikimedia Commons
Origin
United States
Lifespan
12–15 years
Weight
16–32 kg (35–70 lbs)
Height
46–58 cm (18–23 in)
Exercise
60 to 120 min/day
Diet
Omnivore — high-quality active-breed formula; caloric requirements vary significantly with activity level
Taxonomic Hierarchy
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
Genus
Canis
The Story
Despite the name, the Australian Shepherd was developed almost entirely in the United States, likely descending from Basque shepherd dogs that arrived in America via Australia in the 19th century — the "Australian" refers to the dogs' point of origin, not the breed's development. Aussies rose to prominence as all-purpose working ranch dogs of the American West, prized for their herding ability, intelligence, and versatility. They remain one of the top herding breeds in the world and have simultaneously become one of America's most popular family and sport dogs, excelling in virtually every canine discipline.
Also Known As
Quick Facts
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Physical Profile
Source: wikimedia
The Australian Shepherd is a medium-sized, well-balanced, slightly longer than tall working dog with a distinctive, striking coat. The merle pattern — a marbling of darker and lighter shades — is uniquely associated with the breed and produces striking blue merle (grey/black marble) and red merle (red/cream marble) colouration. Heterochromia (two different coloured eyes) is particularly common in merles. Eyes range from brown to blue to amber, sometimes with flecks of multiple colours. The medium-length double coat is weather-resistant. The breed is naturally bobtailed in some individuals; historically tails were docked.
Grooming
High
Shedding
High
Brushing
3-4x-Weekly
Bathing
Every-6-8-Weeks
Coat Colors
Recognized By
Source: wikimedia
Temperament & Personality
Australian Shepherds are driven, focused, and intensely intelligent working dogs. Like Border Collies, they require a job or they will invent one — and their invented jobs rarely meet with owner approval. They are deeply loyal and form strong bonds with their family, often displaying protective behaviour. Their herding instinct is strong and may be redirected toward children, cyclists, or other pets. They are athletic, playful, and high-energy in ways that exhaust casual owners — Aussies are not suitable for sedentary lifestyles. With appropriate outlets, they are responsive, joyful, and endlessly entertaining.
Personality Scores
Adaptability
3/5Attention Need
5/5Friendliness
4/5Playfulness
5/5Protectiveness
3/5Living Profile
Ideal Space
House-Large-Garden
Daily Exercise
60 to 120 min/day
Ideal Weather
-5°C to 28°C
Cognitive Benchmarks
Adaptability
30%
Attention
50%
Playfulness
50%
Communication Style
Stress Signals
herding children/pets, nipping at ankles, excessive barking, destructive behaviour, obsessive behaviours
Care & Wellness
Professional Care Protocol
- •Australian Shepherds need 1.5–2+ hours of vigorous exercise daily plus substantial mental stimulation. Without adequate outlets, they become neurotic, destructive, or develop compulsive behaviours. They excel in agility, flyball, herding trials, disc sports, and obedience. The double coat sheds heavily, particularly twice yearly; daily brushing during seasonal shedding and 3–4 times weekly otherwise. The coat is self-cleaning to a degree but tangles behind the ears and in the leg feathering if not maintained.
Nutrition Notes
MDR1 gene mutation (common in Aussies) means ivermectin and several drugs are TOXIC — DNA test mandatory before any medication. High-energy diet for active dogs. Joint supplements from age 2.
Vaccination Schedule
Vaccination Schedule
Senior Care
Eye problems breed-defining: cataracts, Collie Eye Anomaly (CEA), iris coloboma. CERF eye exam annually. MDR1 status must be on medical file for life. Hip dysplasia — OFA screening. Epilepsy is breed-predisposed. Mental stimulation must continue lifelong — bored Aussies develop severe behavioural issues.
Wellbeing Activities
Nutrition & Sustenance
Daily Calories (Adult)
1400 kcal
Daily Calories (Young)
1000 kcal
Recommended Foods
Foods to Avoid
Health Overview
The Multi-Drug Resistance gene (MDR1 / ABCB1) mutation is critically important in Australian Shepherds — affected dogs cannot safely metabolise many common drugs including ivermectin (a common parasite medication), loperamide (Imodium), and several chemotherapy agents. DNA testing is available. Collie Eye Anomaly (CEA), progressive retinal atrophy, and hereditary cataracts affect the breed. Hip and elbow dysplasia occur. Epilepsy is elevated. Double merle breeding (merle × merle) produces blind and deaf offspring and must be avoided.
Common Conditions
Price Estimates
Pricing Guide
Average estimates as of 2025
Red merle and blue merle most expensive. Merle-to-merle breeding produces double merles (often deaf/blind) — responsible breeders never do this. Mini American Shepherds are a separate breed, not miniature Aussies.
Purchase Price
$800 to $2,500
Adoption Fee
$100 to $500
Data from 2025
Fun Facts
The Australian Shepherd's name is a misnomer — the breed was developed in the American West, likely from Pyrenean Shepherd dogs that Basque shepherds brought to America via Australia during the 19th-century gold rush.
The MDR1 gene mutation in Aussies is so medically significant that many vets now routinely test the breed before administering certain drugs; giving an ivermectin-based dewormer to an MDR1-affected dog can be fatal.
Australian Shepherds became widely popular in the 1950s and 1960s through their appearances in rodeos and western films — Jay Sisler's performing Aussies appeared in Walt Disney films.
A genetic study found the Australian Shepherd has the highest rate of natural bobtails of any breed outside dedicated bobtail breeds — the NBT gene causes a shortened tail and is present in approximately 20% of Aussies.
