Australian Terrier vs Scottish Sheepdog Longhair
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

Scottish Sheepdog Longhair
Also known as: Rough Collie, Lassie Dog, Scottish Collie, Long-Haired Collie
The Scottish Sheepdog Longhair, also known as the Rough Collie, is a highly intelligent and elegant herding breed renowned for its striking long coat, loyalty, and gentle temperament. Made famous by 'Lassie,' this breed was originally developed in the Scottish Highlands as a shepherd's dog and is now cherished as a devoted family companion.
Large
Medium
12-14 yrs
56-66 cm
Quick Comparison
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| 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 | Scottish Sheepdog Longhair |
|---|---|---|
| Size | Small | Large |
| Energy Level | Medium | Medium |
| Grooming | Medium | High |
| Trainability | Moderate | Easy |
| Barking Level | High | High |
| Shedding Level | Low | High |
| Chew strength | Moderate | Moderate |
| Housing | Yard | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Experience Level | Beginner (with conditions) | Beginner |
| 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. | Patient person or family who appreciates regular grooming as bonding time. Tolerant of barking or willing to train 'quiet' command. Enjoys moderate activity but not extreme athletics. Uses positive reinforcement training methods. |
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)
Scottish Sheepdog Longhair Dealbreakers
- Cannot tolerate barking
- Want a 'wash and go' dog - grooming is a hobby here
- Want a dog to jog 10 miles with you in July
- Use harsh training methods - they are 'soft' dogs that shut down
Surrender Risk
| Factor | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Risk Level | Low | Low |
| 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 | Barking - underestimated volume and frequency, Shedding/Grooming - extreme hair and time commitment, Lassie Effect - unrealistic expectations from TV show |
Temperament & Personality
Behavior Comparison
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Medium |
| Separation Vocalization |
Safety & Reliability
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
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.
Scottish Sheepdog Longhair Social Traits
Moderate
Generally dog neutral to friendly. Same-sex aggression is rare.
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
Scottish Sheepdog Longhair
- Keep sessions short (5-10 mins) and fun
- Harsh corrections will cause them to shut down or become fearful
- They are intelligent but not 'neurotic' about problem-solving like Border Collies
- Train 'quiet' command early to manage barking
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.
Scottish Sheepdog Longhair Considerations
Bred to communicate with shepherds over long distances, Collies alert to everything: delivery trucks, neighbors, squirrels, and wind. Unlike a guard dog's warning bark, a Collie often barks to chat or express boredom. The bark is sharp and piercing.
Exceptionally sensitive to their environment. Thunderstorms, fireworks, and even loud arguments can cause significant distress. Poor candidates for chaotic households with constant screaming or slamming doors.
The spectacular coat requires weekly 45-60 minute line-brushing sessions. Surface brushing leaves the undercoat to mat, leading to 'felted' dogs that must be shaved - a disaster for double coats. This is a hobby, not a chore.
Young Collies may attempt to herd running children by nipping at heels. This is an arrested predatory sequence behavior, not aggression, but it can be frightening for small children and requires management.
Multi-Species Compatibility
| Species | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| With Cats | Caution - safe only if raised together and the cat does not run | High safety - one of the best large breeds for multi-species homes. Low prey drive. |
| Small Mammals | Unsafe - high risk for hamsters, rabbits, guinea pigs, rodents | Generally safe - may try to herd but rarely has grab-bite instinct |
| Birds / Reptiles | Unsafe - high risk | Good with poultry if trained, though may harass if untrained |
Advanced Behavior
| Trait | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Predatory Sequence Risk | Full | Arrested |
| Biddability | Medium | High |
| Noise Sensitivity | Low | High |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | N/A |
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.
Scottish Sheepdog Longhair: Predatory sequence is Orient → Eye → Stalk → (Stop). They may stare at and follow cats but grab-bite is largely inhibited. They WANT to work with you - unlike Huskies who ask 'what's in it for me?' a Collie asks 'what do you want me to do?'
First Year & Life Stages
First Year Challenges
| Challenge | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-14 |
| House Training | Medium | Easy |
| Crate Training | Medium | High |
| 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.
Scottish Sheepdog Longhair: Collie puppies are generally polite and observant, easier than Labradors or high-drive breeds. Main challenges are noise sensitivity and socialization to prevent shyness. May need ear taping for classic semi-prick look (cosmetic only).
Life Stages Timeline
| Stage | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Puppy Phase | 12 months | 12 months |
| Adolescence | 6-18 | 6-18 |
| Adult Years | 2-9 | 2-8 |
| Senior Onset | ~10 years | ~9 years |
| Peak Energy Age | 1-3 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Height | 25-28 cm | 56-66 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Small | Large |
| Lifespan | 11–15 years | 12–14 years |
| Litter Size | 4-6 | 6-10 |
Australian Terrier Coat
Scottish Sheepdog Longhair Coat
Lineage & Origin
| Detail | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Original Purpose | Kill rats and snakes in gold mines and sheep stations, tend sheep, and alert owners to intruders | Gathering and droving sheep in the Scottish Highlands, farm guardianship |
| Origin | Australia, 19th century | Scottish Highlands and Northern England, 19th century |
Breeding Details
| Detail | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| C-Section Rate | Low | Low |
| Whelping Difficulty | Easy | Easy |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Bloat / GDV Risk | Low | High |
| Slippery Floor Risk | Low | Low |
| Min Fence Height | 1.2m | 1.3m |
| Dig / Escape Risk | High | Low |
Health & Common Conditions
Australian Terrier Health Issues
Scottish Sheepdog Longhair 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
Scottish Sheepdog Longhair Suggested Tests
- MDR1 (DNA) - CRITICAL
- CEA (DNA + Clinical Exam at 6-8 weeks)
- PRA-rcd2 (DNA)
- Hip Evaluation
Health Risk Overview
| Risk Factor | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Cancer Risk | Low | Low |
| Cardiac Risk | Low | Low |
| Neurological Risk | Low | Low |
| CCL/ACL Tear Risk | Low | Low |
| Vet Burden Tier | Medium | Medium |
Sensitivities & Allergies
| Sensitivity | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies | General environmental allergens | Generally hardy |
Health Maintenance
| Care Item | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Nail Growth Rate | Fast | Normal |
| Eye Care Needs | Low | High |
| 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).
Scottish Sheepdog Longhair Senior Care
Common Senior Issues
- Arthritis in hips/knees
- Cognitive decline
- Vision problems (CEA progression)
High risk of arthritis - introduce ramps for cars early to protect joints. Keep mentally engaged with nosework to slow cognitive decline.
Grooming & Care
Australian Terrier
medium maintenanceScottish Sheepdog Longhair
high maintenanceLifestyle Compatibility
Australian Terrier Daily Life
Scottish Sheepdog Longhair Daily Life
Housing & Legal Restrictions
| Restriction | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 25lbs | Over 50lbs |
Climate Tolerance
| Climate | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Low |
Travel Compatibility
| Activity | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Service Dog | Low | Medium |
| Therapy Dog | Medium | High |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Low | Medium |
Costs & Expenses
Upfront Costs
| Cost | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Purchase Price | $1,200-2,500 | $1,500-3,000 |
| Initial Cost Range | $1,200–$2,500 | $1,500–$3,000 |
| Cost Tier |
Ongoing Costs
| Cost | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Monthly Range | $120–$200 | $150–$250 |
| Yearly Range | $1,440–$2,400 | $2,000–$3,000 |
| Food / Month | $30-50 | $60-90 |
| Insurance / Month | $40-70 | $40-70 |
| Grooming / Session | $50-80 | $80-150 |
| Vet Routine / Year | $300-600 | $600-1,000 |
| Monthly Cost Tier |
Australian Terrier Lifetime Cost
$15,000-30,000
Scottish Sheepdog Longhair Lifetime Cost
$25,000-40,000
Quirks & Fun Facts
Daily Quirks
| Quirk | Australian Terrier | Scottish Sheepdog Longhair |
|---|---|---|
| Snoring | ||
| Flatulence | Rare | Rare |
| Slobber Level | None | None |
| Smell When Wet | Mild | Moderate |
| Zoomies Frequency | Weekly | Weekly |
| Counter Surfing | ||
| Digging Tendency | High | Low |
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.
Scottish Sheepdog Longhair Quirks
The Collie Nose
They use their long nose to poke, prod, and nudge you - their way of holding hands
The Greeter's Grin
Some Collies 'smile' (bare their teeth) when submissive or happy. Looks terrifying to strangers but is a sign of joy.
Air Snapping
May snap the air when excited or playing
The Off Switch
Unlike Border Collies, Rough Collies have a distinct 'off switch' and are often described as couch potatoes indoors
Frequently Asked Questions
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