Portuguese Water Dog vs Scottish Sheepdog Longhair
A side-by-side comparison to help you find the right breed for your lifestyle.

Portuguese Water Dog
Also known as: PWD, Portie, Cão de Água Português, Obama Dog
The Portuguese Water Dog (PWD) is a highly energetic and intelligent breed known for its curly, hypoallergenic coat and exceptional swimming abilities. Originally bred to work alongside Portuguese fishermen—herding fish into nets, retrieving lost tackle, and swimming messages between boats—they are devoted 'Velcro dogs' who bond intensely with their families.
Medium
High
11-14 yrs
43-57 cm
16-27 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 | Portuguese Water Dog | 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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Size | Medium | Large |
| Energy Level | High | Medium |
| Grooming | High | High |
| Trainability | Easy | Easy |
| Barking Level | Medium | High |
| Shedding Level | Low | High |
| Chew strength | Moderate | Moderate |
| Housing | Yard | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Experience Level | Intermediate | Beginner |
| First-Time Owner | ||
| Ideal Owner | Active individual or family willing to hire professional groomer. Works from home or can provide midday activity. Has access to swimming opportunities. Tolerant of a shadow dog that demands interaction. | 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. |
Portuguese Water Dog Dealbreakers
- Sedentary lifestyle - if you hate walking/swimming, this dog becomes neurotic and destructive
- Budget constraints - if $100/month for grooming is a hardship
- Long work hours - if everyone is gone 9-5 without dog walker or daycare
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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Risk Level | Medium | Low |
| Primary Reasons | Grooming & Energy - owners underestimate coat maintenance leading to severe matting, Mouthiness in puppyhood surprises and overwhelms owners, Sheer amount of interaction the dog demands | Barking - underestimated volume and frequency, Shedding/Grooming - extreme hair and time commitment, Lassie Effect - unrealistic expectations from TV show |
Temperament & Personality
Behavior Comparison
| Trait | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Barking Level | Medium | High |
| Howling Tendency | ||
| Whining Tendency | High | Medium |
| Separation Vocalization |
Safety & Reliability
| Trait | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Portuguese Water Dog Social Traits
Medium
Generally friendly with proper socialization
Scottish Sheepdog Longhair Social Traits
Moderate
Generally dog neutral to friendly. Same-sex aggression is rare.
Training
Portuguese Water Dog
- Use high-value treats and toys - 'Because it pays well' works better than 'Because I said so'
- Keep sessions varied and engaging - they get bored with repetition
- Channel mouthiness into retrieving games and teaching them to carry objects
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
Portuguese Water Dog Considerations
PWDs were bred to work on small fishing boats alongside their masters all day. They follow you into the bathroom and may develop severe separation anxiety if left alone 8+ hours. Prone to demand barking and whining if ignored.
As a retriever breed, they interact with the world through their mouths. PWD puppies are notoriously 'nippy' and oral—this is not aggression but can be painful and frightening for young children.
This breed is famous for dancing on hind legs and jumping up to greet faces. While charming to some, it's a significant fall risk for elderly owners or small children.
Professional grooming every 6-8 weeks at $100-150 is mandatory, not optional. Neglecting this leads to severe matting that damages skin and requires shave-down.
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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| With Cats | Generally safe if socialized - may chase running animals but usually stop when animal stops | High safety - one of the best large breeds for multi-species homes. Low prey drive. |
| Small Mammals | Caution - may try to chase and retrieve | Generally safe - may try to herd but rarely has grab-bite instinct |
| Birds / Reptiles | Not a livestock guardian - may try to herd or play with stock | Good with poultry if trained, though may harass if untrained |
Advanced Behavior
| Trait | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Predatory Sequence Risk | Arrested | Arrested |
| Biddability | High | High |
| Noise Sensitivity | Low | High |
| Territorial Barking | ||
| Same-Sex Aggression Onset | N/A | N/A |
Portuguese Water Dog: Predatory sequence: Orient -> Eye -> Stalk -> Chase -> Grab-Bite. The Kill-Bite and Dissect phases are inhibited. This makes them generally safe with other dogs and often cats, though they may annoy them.
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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-14 |
| House Training | Moderate | Easy |
| Crate Training | High | High |
| Adolescent Regression |
Portuguese Water Dog: PWD puppies are 'land sharks' - their retrieving instinct manifests as severe nipping and mouthing. Combined with high intelligence and energy, they require more management than a Golden Retriever (6/10) but less than a Malinois (9/10).
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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Puppy Phase | 12 months | 12 months |
| Adolescence | 12-36 | 6-18 |
| Adult Years | 3-9 | 2-8 |
| Senior Onset | ~9 years | ~9 years |
| Peak Energy Age | 1-3 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Height | 43-57 cm | 56-66 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Medium | Large |
| Lifespan | 11–14 years | 12–14 years |
| Litter Size | 4-8 | 6-10 |
Portuguese Water Dog Coat
Scottish Sheepdog Longhair Coat
Lineage & Origin
| Detail | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Original Purpose | Fishing crew member - herding fish into nets, swimming messages between boats, retrieving broken nets and tackle | Gathering and droving sheep in the Scottish Highlands, farm guardianship |
| Origin | Portugal, coastal regions, centuries-old heritage | Scottish Highlands and Northern England, 19th century |
Breeding Details
| Detail | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| C-Section Rate | Low | Low |
| Whelping Difficulty | Easy | Easy |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Bloat / GDV Risk | Low | High |
| Slippery Floor Risk | Low | Low |
| Min Fence Height | 1.5m | 1.3m |
| Dig / Escape Risk | Low | Low |
Health & Common Conditions
Portuguese Water Dog Health Issues
Scottish Sheepdog Longhair Health Issues
Portuguese Water Dog Suggested Tests
- prcd-PRA DNA test
- EOPRA DNA test
- JDCM DNA test
- GM-1 DNA test
- OFA Hip Evaluations (or PennHIP)
- Annual Eye Exams (CAER)
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 | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Cancer Risk | Low | Low |
| Cardiac Risk | Medium | Low |
| Neurological Risk | Low | Low |
| CCL/ACL Tear Risk | Low | Low |
| Vet Burden Tier | Medium | Medium |
Sensitivities & Allergies
| Sensitivity | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Moderate | Low |
| Food Allergies | Generally hardy |
Health Maintenance
| Care Item | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Medium | High |
| Anal Gland Issues | Rare | Rare |
Senior Care & Aging
Portuguese Water Dog Senior Care
Common Senior Issues
- Arthritis/joint stiffness
- Cataracts/PRA progression
- Addison's Disease (can appear at any age)
- Hip dysplasia complications
Slow down significantly around 9+. Watch for clouding eyes (cataracts/PRA) and stiffness (arthritis).
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
Portuguese Water Dog
high maintenanceScottish Sheepdog Longhair
high maintenanceLifestyle Compatibility
Portuguese Water Dog Daily Life
Scottish Sheepdog Longhair Daily Life
Housing & Legal Restrictions
| Restriction | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | 25-50lbs | Over 50lbs |
Climate Tolerance
| Climate | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Extreme | Low |
Travel Compatibility
| Activity | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Car Travel | Excellent | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Service Dog | Medium | Medium |
| Therapy Dog | High | High |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Medium | Medium |
Costs & Expenses
Upfront Costs
| Cost | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Purchase Price | $2,500-4,500 | $1,500-3,000 |
| Initial Cost Range | $2,500–$4,500 | $1,500–$3,000 |
| Cost Tier |
Ongoing Costs
| Cost | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Monthly Range | $150–$300 | $150–$250 |
| Yearly Range | $2,500–$3,500 | $2,000–$3,000 |
| Food / Month | $60-90 | $60-90 |
| Insurance / Month | $50-80 | $40-70 |
| Grooming / Session | $100-150 | $80-150 |
| Vet Routine / Year | $400-1,000 | $600-1,000 |
| Monthly Cost Tier |
Portuguese Water Dog Lifetime Cost
$30,000-50,000
Scottish Sheepdog Longhair Lifetime Cost
$25,000-40,000
Quirks & Fun Facts
Daily Quirks
| Quirk | Portuguese Water Dog | Scottish Sheepdog Longhair |
|---|---|---|
| Snoring | ||
| Flatulence | Rare | Rare |
| Slobber Level | None | None |
| Smell When Wet | None | Moderate |
| Zoomies Frequency | Daily | Weekly |
| Counter Surfing | ||
| Digging Tendency | Low | Low |
Portuguese Water Dog Quirks
Counter Surfing Ninjas
Their intelligence and food motivation make them expert kitchen thieves - they can steal food with impressive stealth
The Portie Greeting
Famous for dancing on hind legs and jumping up to greet faces - can be a fall risk for elderly or children
The Talker
They 'talk' with grumbles, moans, and varied barks as common ways to communicate their needs
Water Obsession
Most will dive into any body of water including mud puddles and swimming pools
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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