Australian Terrier vs Great Pyrenees
A side-by-side comparison to help you find the right breed for your lifestyle.
Australian Terrier
Also known as: Aussie, Australian Rough
The Australian Terrier is a small, robust breed known for its spirited personality, intelligence, and loyalty. Originally bred to hunt vermin and guard homes, this terrier is both a devoted companion and an alert watchdog, characterized by its distinctive rough, weather-resistant coat and keen expression.
Small
Medium
11-15 yrs
25-28 cm
6.8-9.1 kg
Great Pyrenees
Also known as: Pyr, Pyrenean Mountain Dog, Chien de Montagne des Pyrenees
The Great Pyrenees is a majestic livestock guardian weighing 38-72 kg, bred to work independently in the Pyrenees Mountains. While gentle with family, their nocturnal barking, roaming instinct, and independent nature require experienced owners with secure fencing. Not recommended for apartments or first-time owners.
Extra Large
Medium
10-12 yrs
65-82 cm
Quick Comparison
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Energy | ||
| Trainability | ||
| Grooming Needs | ||
| Family Friendly | ||
| Independence |
Key Characteristics
| Good with Kids | ||
| Good with Dogs | ||
| Good with Cats | ||
| Hypoallergenic | ||
| Apartment Friendly | ||
| First-Time Owner OK |
| Detail | Australian Terrier | Great Pyrenees |
|---|---|---|
| Size | Small | Extra Large |
| Energy Level | Medium | Medium |
| Grooming | Medium | High |
| Trainability | Moderate | challenging |
| Barking Level | High | High |
| Shedding Level | Low | High |
| Chew strength | Moderate | Moderate |
| Housing | Yard | Acreage |
Owner Fit & Decision Guide
Owner Match
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Experience Level | Beginner (with conditions) | Advanced |
| First-Time Owner | ||
| Ideal Owner | Confident beginner or experienced owner willing to train consistently. Works from home or has flexible schedule. Single-dog household preferred, or with opposite-sex passive dog. No small prey animals. Comfortable with managing barking through training. | Experienced owner with acreage or large securely fenced yard, tolerant of nocturnal barking, understanding of independent working breeds, possibly with livestock to guard. Patient with training and comfortable with a dog that thinks for itself. |
Australian Terrier Dealbreakers
- Want a silent dog
- Have pocket pets (hamsters, rats) that roam
- Want a dog that can be off-leash in unfenced areas
- Unwilling to manage potential dog-aggression
- Passive or permissive owner (if you treat them like a baby, they will become a tyrant)
Great Pyrenees Dealbreakers
- Live in an apartment or rental
- Have close neighbors sensitive to barking
- Want a dog that obeys commands instantly
- Don't have a secure physical fence
- Want a pristine, fur-free home
- Need a running or high-intensity exercise partner
Surrender Risk
| Factor | Australian Terrier | Great Pyrenees |
|---|---|---|
| Risk Level | Low | High |
| Primary Reasons | Barking complaints from neighbors, Incompatibility with other pets (chasing cats, fighting dogs), Owners buy thinking they are low-maintenance small dogs and are overwhelmed by their big-dog energy and tenacity | Nocturnal barking - owners get a fluffy puppy that starts barking all night at 1 year old, Roaming/escape - jumping fences to expand territory, Resource guarding - growling over food scares families who expected Golden Retriever temperament, Size underestimated - 120lb dog that refuses to move and may growl when asked to get off couch |
Temperament & Personality
Behavior Comparison
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Moderate to High |
Australian Terrier Social Traits
Medium
Often bossy and may spark fights with much larger dogs, refusing to back down. Same-sex aggression is a known trait.
Great Pyrenees Social Traits
High
Same-sex aggression common, especially females. Keep opposite-sex pairs for peace.
Training
Australian Terrier
- Harsh methods trigger their 'terrier grit,' causing them to shut down or fight back
- Use high-value rewards (food/toys)
- Keep training sessions short and varied
- Practice 'Nothing in Life is Free' to maintain household boundaries
Great Pyrenees
- Must convince them your request is worth their effort
- Harsh corrections cause shutdown or defensive behavior
- Focus on management over strict obedience
- Accept that recall will never be 100% reliable
Australian Terrier Considerations
Bred to alert settlers to snakes and intruders, they score 5/5 on watchdog ability. In modern settings, this means barking at delivery trucks, hallway footsteps, and leaves blowing across the patio. Often a dealbreaker for renters with noise restrictions.
Documented risk of aggression toward dogs of the same sex, particularly between two females. This often emerges at sexual maturity (18-24 months) and can escalate from posturing to serious fighting. They generally do best as the only dog or with a companion of the opposite sex.
Their prey drive is not a game; it is a job. They were engineered to kill rats and snakes. They cannot be trusted with hamsters, rabbits, or guinea pigs, and they may harass cats that run. This is a Full Predatory Sequence breed—they do not just chase; they grab and shake.
Great Pyrenees Considerations
The #1 complaint from suburban owners. Pyrs are genetically hardwired to patrol and bark at night - they were bred to ward off wolves and bears. This instinct cannot be trained out, only managed. Expect deep, booming barks at 2 AM when a leaf blows across the driveway.
Great Pyrenees do not believe in property lines. Without a secure 5-6 foot physical fence, they will expand their territory to include the entire neighborhood. They are notorious escape artists and will take the shock from invisible fences to pursue threats.
Adult Pyrs often exhibit severe aggression toward dogs of the same sex, particularly females. This usually manifests around social maturity (18-24 months). Opposite-sex pairs are generally recommended.
Pyrs are not dumb - they are independent. When called, they evaluate whether coming is more important than what they are currently doing (usually guarding). If they decide it isn't, they will ignore you completely.
Multi-Species Compatibility
| Species | Australian Terrier | Great Pyrenees |
|---|---|---|
| With Cats | Caution - safe only if raised together and the cat does not run | Excellent - bred to protect vulnerable animals, views cats as part of the flock to guard |
| Small Mammals | Unsafe - high risk for hamsters, rabbits, guinea pigs, rodents | Good - low prey drive, protective instinct toward smaller animals in their family |
| Birds / Reptiles | Unsafe - high risk | Good with supervision - generally safe due to arrested predatory sequence |
Advanced Behavior
| Trait | Australian Terrier | Great Pyrenees |
|---|---|---|
| Predatory Sequence Risk | Full | Arrested |
| Biddability | Medium | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | 18 months |
Australian Terrier: Full Predatory Sequence: Orient → Eye → Stalk → Chase → Grab-Bite → Kill-Bite. Bred to kill snakes and rats. You cannot 'train out' the desire to shake a rat; you can only manage it. Not 'will to please' dogs - they are 'what's in it for me?' dogs.
Great Pyrenees: Predatory sequence arrested early - may chase predators to drive away but lack dissect/consume drive. Brilliant problem solvers but low 'working intelligence' (willingness to follow commands). Bred to work without humans so don't look to humans for answers.
First Year & Life Stages
First Year Challenges
| Challenge | Australian Terrier | Great Pyrenees |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-18 |
| House Training | Medium | Medium |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Australian Terrier: While small and portable, they are intense. House training is moderately difficult (terriers can be stubborn), and their sharp puppy teeth are used freely during play. Critical socialization window is 8-16 weeks - must socialize to handling and strangers to prevent natural wariness from turning into defensiveness.
Great Pyrenees: Pyr puppies are large, stubborn land sharks. A 6-month-old is the size of a German Shepherd but has the brain of a toddler. Critical socialization window 8-16 weeks - must expose to strangers, other dogs, and strange noises or natural guarding instinct can turn into fear-aggression.
Life Stages Timeline
| Stage | Australian Terrier | Great Pyrenees |
|---|---|---|
| Puppy Phase | 12 months | 18 months |
| Adolescence | 6-18 | 10-24 |
| Adult Years | 2-9 | 2-8 |
| Senior Onset | ~10 years | ~8 years |
| Peak Energy Age | 1-3 years | 1-2 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Australian Terrier | Great Pyrenees |
|---|---|---|
| Height | 25-28 cm | 65-82 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Small | Extra Large |
| Lifespan | 11–15 years | 10–12 years |
| Litter Size | 4-6 | 6-10 |
Australian Terrier Coat
Great Pyrenees Coat
Lineage & Origin
| Detail | Australian Terrier | Great Pyrenees |
|---|---|---|
| Original Purpose | Kill rats and snakes in gold mines and sheep stations, tend sheep, and alert owners to intruders | Autonomous livestock guardian - protecting sheep from wolves and bears in the Pyrenees Mountains without human guidance |
| Origin | Australia, 19th century | Pyrenees Mountains (France/Spain), ancient breed |
Breeding Details
| Detail | Australian Terrier | Great Pyrenees |
|---|---|---|
| C-Section Rate | Low | Low |
| Whelping Difficulty | Easy | Easy |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Australian Terrier | Great Pyrenees |
|---|---|---|
| Bloat / GDV Risk | Low | High |
| Slippery Floor Risk | Low | Medium |
| Min Fence Height | 1.2m | 1.5m |
| Dig / Escape Risk | High | High |
Health & Common Conditions
Australian Terrier Health Issues
Great Pyrenees Health Issues
Australian Terrier Suggested Tests
- Annual blood glucose and urinalysis (starting at age 5)
- OFA Patella Evaluation
- CERF Eye Examination
- Family history of Diabetes inquiry
Great Pyrenees Suggested Tests
- Gastropexy (stomach tacking) - recommended during spay/neuter
- Neuronal Degeneration (NDG) DNA test
- Hip Evaluation (OFA)
- Elbow Evaluation
- Patella Evaluation
Health Risk Overview
| Risk Factor | Australian Terrier | Great Pyrenees |
|---|---|---|
| Cancer Risk | Low | High (osteosarcoma) |
| Cardiac Risk | Low | Low |
| Neurological Risk | Low | Medium (NDG) |
| CCL/ACL Tear Risk | Low | Medium |
| Vet Burden Tier | Medium | High |
Sensitivities & Allergies
| Sensitivity | Australian Terrier | Great Pyrenees |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies | General environmental allergens | Generally robust |
Health Maintenance
| Care Item | Australian Terrier | Great Pyrenees |
|---|---|---|
| Nail Growth Rate | Fast | Normal |
| Eye Care Needs | Low | Medium (entropion risk) |
| Anal Gland Issues | Rare | Rare |
Senior Care & Aging
Australian Terrier Senior Care
Common Senior Issues
- Diabetes Mellitus (watch for excessive thirst/urination)
- Cataracts
- Joint stiffness
Mobility usually remains good until very late life. Primary concern in seniors is monitoring for diabetes symptoms (excessive thirst, frequent urination, weight loss despite normal eating).
Great Pyrenees Senior Care
Common Senior Issues
- Arthritis/mobility decline
- Osteosarcoma (bone cancer)
- Hip dysplasia progression
- Vision decline
Mobility slows around 8+ years. Arthritis management becomes primary focus. Ramps for cars and stairs become necessary.
Grooming & Care
Australian Terrier
medium maintenanceGreat Pyrenees
high maintenanceLifestyle Compatibility
Australian Terrier Daily Life
Great Pyrenees Daily Life
Housing & Legal Restrictions
| Restriction | Australian Terrier | Great Pyrenees |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 25lbs | Over 50lbs |
Climate Tolerance
| Climate | Australian Terrier | Great Pyrenees |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Low |
Travel Compatibility
| Activity | Australian Terrier | Great Pyrenees |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Australian Terrier | Great Pyrenees |
|---|---|---|
| Service Dog | Low | Low |
| Therapy Dog | Medium | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Low | None |
Costs & Expenses
Upfront Costs
| Cost | Australian Terrier | Great Pyrenees |
|---|---|---|
| Purchase Price | $1,200-2,500 | $1,800-4,000 |
| Initial Cost Range | $1,200–$2,500 | $1,800–$4,000 |
| Cost Tier |
Ongoing Costs
| Cost | Australian Terrier | Great Pyrenees |
|---|---|---|
| Monthly Range | $120–$200 | $180–$300 |
| Yearly Range | $1,440–$2,400 | $2,160–$3,600 |
| Food / Month | $30-50 | $100-150 |
| Insurance / Month | $40-70 | $50-80 |
| Grooming / Session | $50-80 | $100-200 |
| Vet Routine / Year | $300-600 | $600-1,500 |
| Monthly Cost Tier |
Australian Terrier Lifetime Cost
$15,000-30,000
Great Pyrenees Lifetime Cost
$25,000-45,000
Quirks & Fun Facts
Daily Quirks
| Quirk | Australian Terrier | Great Pyrenees |
|---|---|---|
| Snoring | ||
| Flatulence | Rare | Rare |
| Slobber Level | None | Moderate |
| Smell When Wet | Mild | Mild |
| Zoomies Frequency | Weekly | Rare |
| Counter Surfing | ||
| Digging Tendency | High | High |
Australian Terrier Quirks
The Ruff
Distinctive ruff of hair around the neck (like a lion's mane) which was historically protective against snake bites
The Topknot
The soft, silky hair on their head contrasts with the wire body coat and needs gentle combing
Digging for Fun
They don't just dig to escape; they dig for fun. Provide a designated sandpit and bury toys in it to save your flowerbeds.
Bossiness
They will attempt to run the household. 'Nothing in life is free' training is recommended to maintain boundaries.
Great Pyrenees Quirks
The Pyr Paw
Will forcefully paw at you to demand attention - can be painful given their size and claw strength
The Pyr Lean
Shows affection by leaning their entire 100lb+ weight against your legs
Mud Magnet
White coat is surprisingly self-cleaning (mud dries and falls off) - but the mud falls off onto your floor
Selective Deafness
Will evaluate your command, decide if it's worth their effort, and ignore you if it isn't
Snow Obsession
Will refuse to come inside during snowstorms - thrive in freezing temperatures
Frequently Asked Questions
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