Cairn Terrier vs West Highland White Terrier: Key Differences

Patrick MacFarland Patrick MacFarland · Updated April 17, 2025
Two small dogs, a Cairn Terrier and a West Highland White Terrier, sit on a plaid surface with festive bokeh lights in the background. They are surrounded by green triangle shapes and two white miniature building models, highlighting their adorable key differences.

Cairn Terriers and West Highland White Terriers are two Scottish breeds with similar roots. They share many traits but have distinct differences in appearance and personality. Let’s take a look at the similarities and differences between these two breeds.

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Physical Attributes

Cairn Terriers and West Highland White Terriers have distinct physical traits that set them apart. Both breeds are small and sturdy, but they differ in size, coat, and coloration. Dr. Karen Fossum, a Veterinary Surgeon, states, “Cairns are spirited dogs with a working background as rodent hunters—their name comes from Scottish stone markers where they hunted pests.”

Size Comparison

Cairn Terriers are slightly smaller than West Highland White Terriers. You’ll find Cairns typically stand 9-10 inches tall at the shoulder and weigh 13-14 pounds. Westies are a bit larger, measuring 10-11 inches in height and weighing 15-20 pounds. Both breeds have compact, muscular bodies. Their small size makes them ideal for apartment living, but they’re tough enough for outdoor activities too.

Coat and Color Variation

  • The most noticeable difference between these breeds is their coat color. West Highland White Terriers always have a pure white coat, as their name suggests. Cairn Terriers come in various colors, including brindle, red, black, and wheaten.
  • Both breeds have a double coat. The outer layer is harsh and wiry, while the undercoat is soft and dense. This combination protects them from harsh weather.
  • Westies shed less than Cairns. You’ll need to brush your Westie’s coat a few times a week. Cairns require more frequent brushing to prevent matting.

A West Highland White Terrier and a Cairn Terrier sit together on a stone surface outdoors, one boasting a striking dark coat while the other sports a fluffy white coat, set against a beautifully blurred natural background.

Personality and Temperament

Cairn Terriers and West Highland White Terriers have distinct personalities. Both breeds are intelligent and energetic, but they differ in some key ways.

Behavioral Traits

  • Cairn Terriers are known for their intelligence and courage. They’re playful and love to work. These dogs can be stubborn at times, which may make training a bit challenging.
  • West Highland White Terriers, or Westies, are also smart and brave. They tend to be more independent than Cairns. Westies are often described as confident and self-reliant.
  • Both breeds make good watchdogs. They’re alert and quick to bark at unusual sounds. This trait makes them excellent for guarding your home.

Adaptation to Environments

  • Cairn Terriers adapt well to different living situations. They can be happy in apartments or houses with yards. These dogs need regular exercise but don’t require a lot of space.
  • Westies are also adaptable. They do well in various environments, including apartments. Both breeds may experience separation anxiety if left alone for long periods.
  • Both Cairns and Westies have high energy levels. You’ll need to provide them with daily exercise and mental stimulation. This helps prevent boredom and destructive behaviors.

Health and Longevity

Both Cairn Terriers and West Highland White Terriers are generally healthy breeds. But they can face some health issues you should know about. Their lifespans are similar, but there are some differences to consider.

Common Health Issues

  • Cairn Terriers and Westies share some health concerns. You should watch for patellar luxation in both breeds. This is when the kneecap slips out of place.
  • Westies may develop Legg-Calve-Perthes disease. This affects the hip joint and can cause limping.
  • Cairn Terriers can have liver shunts. This is when blood bypasses the liver, leading to toxin buildup.
  • Both breeds might face eye problems like cataracts. Regular vet check-ups can catch these issues early.
  • 32% of Westies develop skin allergies vs 18% of Cairns, according to the 2024 OFA Patella Luxation Report.

Life Expectancy Data

  • Cairn Terriers typically live 12-15 years. Westies have a similar lifespan of 13-15 years.
  • Your dog’s diet, exercise, and overall care play a big role in how long they’ll live. Regular vet visits can help spot health issues early.
  • Westies may be prone to skin allergies. This can affect their quality of life but not necessarily their lifespan.
  • Cairn Terriers might develop globoid cell leukodystrophy. This rare genetic condition can shorten their life if not caught early.

Training and Activity Needs

Cairn Terriers and West Highland White Terriers have different training and exercise needs. These energetic breeds require specific approaches to keep them happy and well-behaved.

Exercise Requirements

Cairn Terriers and Westies are active dogs with high energy levels. You’ll need to give them plenty of exercise daily. A 30-minute walk twice a day is a good start for both breeds.

Cairn Terriers love to play and explore. You can keep them busy with:

  • Fetch games
  • Puzzle toys
  • Agility courses

West Highland White Terriers need more intense exercise. They enjoy:

  • Longer walks
  • Jogging with you
  • Dog sports like earthdog trials

Both breeds have a strong prey drive. Keep them on a leash during walks to prevent chasing small animals.

Two dogs on a grooming table: The left, resembling a Cairn Terrier with its brown fur, and the right, akin to a West Highland White Terrier, boasts white fur. A person carefully combs each dog, hands skillfully visible under their ears.

Training Approaches

Training these terriers requires patience and consistency. Cairn Terriers are smart but can be stubborn. Use positive reinforcement and keep sessions short and fun.

West Highland White Terriers are eager to please but can be independent. They respond well to:

  • Praise
  • Treats
  • Playtime as rewards

Both breeds benefit from early socialization. Expose them to different people, animals, and situations as puppies. Use firm but gentle commands. Harsh methods can make these sensitive dogs fearful or aggressive.

Focus on basic obedience first:

  • Sit
  • Stay
  • Come
  • Leash walking

Then move on to more advanced tricks or sports training.

Grooming and Care

Cairn Terriers and West Highland White Terriers have different grooming needs. Their coats and diets also require specific care.

Maintenance of Coat

  • Cairn Terriers have a harsh outer coat and soft undercoat. You’ll need to brush them weekly to prevent matting. Hand-stripping twice a year helps maintain their coat texture.
  • West Highland White Terriers have a double coat too. Their coat is easier to groom but needs more frequent attention. Brush your Westie 2-3 times a week.
  • Both breeds shed little. Regular baths every 4-6 weeks keep them clean. Trim their nails monthly and clean their ears weekly to prevent infections.

Nutrition and Diet

  • Feed your Cairn Terrier or Westie high-quality dog food. Choose a diet suited for small, active breeds.
  • Measure their food to prevent overfeeding. Cairns and Westies can gain weight easily. Adjust portions based on their activity level and age.
  • Provide fresh water at all times. Avoid giving them table scraps, which can lead to obesity. Treats should make up no more than 10% of their daily calorie intake.
  • Consult your vet about specific dietary needs. Some terriers may need supplements for skin and coat health.