6-7 lbs
Cairn Terrier

A Toxirn is a delightful designer hybrid. He is a mix of the Cairn Terrier and the Chihuahua. This small dog is confident and friendly. He forms a very close bond with his family. Unfortunately, he is very protective and can become aggressive towards strangers in an attempt to protect his humans.  He is also a bit territorial when it comes to other dogs and will stand up for what he thinks is his home. This perky and confident dog stands 8 to 10 inches and weighs 6 to 8 pounds. 

Date of Origin
Cairn Terrier, Chihuahua

Toxirn Health

Average Size
Male Toxirn size stats
Height: 8-10 inches Weight: 6-8 lbs
Female Toxirn size stats
Height: 8-9 inches Weight: 6-7 lbs
Major Concerns
  • Entropion
  • Canine Hip Dysplasia
  • Perianal Fistulas
  • Diabetes
  • Corneal Dystrophy
  • vonWillebrand’s Disease
  • Craniomandibular Osteopathy (Lion Jaw)
Minor Concerns
  • Hypothyroidism
Occasional Diagnoses
  • None Known
Occasional Tests
  • Eye Examination
  • Blood and Urine Tests
  • Wellness Check
  • Full Physical Examination regarding joint movement around the hip and kneecap
  • DNA for VWD

Toxirn Breed History

The Toxirn brings together the playful nature of the Cairn Terrier with the spunky bravery of the Chihuahua to create an ideal companion dog that is perfect for any living situation. The brave little Cairn Terrier was bred to hunt prey between the cairns of Scotland and that is how it received its moniker. For hundreds  of years, this small dog has been a beloved pet of the Scottish people. In 1938, this compact breed skyrocketed in popularity when the iconic movie, The Wizard of Oz, was released in movie theaters. Dorothy, the main character, owned a feisty Cairn Terrier that she called Toto. The Cairn Terrier was also the breed of choice in the sitcom I Love Lucy. Little Ricky, the child star of the show, owned a Cairn Terrier named ‘Fred’. The American Kennel Club recognized the breed in 1938 and it was entered into the Terrier Group. The Chihuahua is often called the ‘Taco Dog’. Originating thousands of years ago in Central America and Mexico, this tiny breed is believed to have been owned and bred by the Toltec civilization. The Aztecs also raised the wee canines as a food source and something to barter. These slight in size dogs also made ideal bed warmers and were also used for healing because it was believed that the pain and suffering of the person could be transferred to the dog. They were often cremated with their deceased owners as part of a funeral rite. It was believed that the rite exonerated the human’s sins for the afterlife. In 1904, the Chihuahua was officially entered into the Toy Group by the American Kennel Club.

Toxirn Breed Appearance

The Toxirn is a cute combination of the Cairn Terrier and the Chihuahua. He has a wiry, bristle coat that isn’t overly long. The hairs tend to stick out at all angles making him look a bit frumpy but cute. His coat color is usually a combination of tan, grey, and black. His nose is a small black button and his dark eyes are bright. His tiny ears are upturned and pricked in shape. His body is firm and muscular. Although tiny, there is nothing physically frail about the dog. He is a robust little package.
Eye Color Possibilities
brown Toxirn eyes
Nose Color Possibilities
black Toxirn nose
Coat Color Possibilities
black Toxirn coat
gray Toxirn coat
brown Toxirn coat
Coat Length
Short Medium Long
Coat Density
Sparse Normal Dense
Coat Texture
Toxirn wiry coat texture
Straight Wiry Wavy Curly Corded

Toxirn Breed Maintenance

The fur of the Toxirn is virtually maintenance free. It requires only occasional brushing and rarely tangles. It doesn’t grow so he does not need clipping. The fur also rarely sheds. His tiny little toenails often wear down from walks and play but some owners have to clip their dog's nails once a month to maintain their length. His pricked ears sometimes accumulate debris. A once a week washing with a warm cloth readily clears out the dirt from his ears. He usually only requires a bath once every month or two to remove the doggy smell. Some owner’s brush their dog's teeth once or twice a week to remove plaque and prevent unwanted doggy breath. Brushing also helps prevent gum disease later in life.
Brushes for Toxirn
Slicker Brush
Nail Clipper
Brushing Frequency
Toxirn requires weekly brushing
Daily Weekly Monthly

Toxirn Temperament

The Toxirn is a spunky little dog that doesn’t know he’s tiny. He thinks he’s a king and can conquer anything. His outgoing attitude makes him a beloved family pet. Unlike Chihuahuas, the Toxirn usually adores gentle children. He bonds very closely with his family.  His small size and love of being pampered make him an ideal lapdog. The spunky Toxirn is always ready for a walk or a game of fetch. He loves to enjoy life and he has a very happy character. He should get along just fine with other animals within the home, but supervision is always recommended, especially when tiny rodent like animals are present.

Toxirn Activity Requirements

The Toxirn is an ideal combination of attitude and activity. He is always ready and willing to go for a walk or enjoy a run at the dog park. The little guy is also happy to spend his time curled up on his owner’s lap. His versatility makes him a great choice for an apartment where outdoor exercise opportunities are limited. He is highly intelligent and loves learning tricks and basic obedience. The Toxirn tends to get along well with other pets and enjoys the company of other dogs at the dog park. However, remember that this modest sized guy thinks he’s a big dog so he isn’t afraid if confronted by a bigger, meaner dog.
Activity Level
Low Medium High
Rec. Walk Mileage Per Week
7 miles
Minutes of Activity Per Day
30 minutes

Toxirn Food Consumption

Cups Per Day
1 cups
Daily Cost
$0.90 - $1.00
Monthly Cost
$20.00 - $30.00

Toxirn Height & Weight

6 Months
Male Toxirn size stats at six months
Height: 6 inches Weight: 3 lbs
Female Toxirn size stats at six months
Height: 5 inches Weight: 3 lbs
12 Months
Male Toxirn size stats at 12 months
Height: 9 inches Weight: 7 lbs
Female Toxirn size stats at 12 months
Height: 8 inches Weight: 6 lbs
18 Months
Male Toxirn size stats at 18 months
Height: 9 inches Weight: 7 lbs
Female Toxirn size stats at 18 months
Height: 8 inches Weight: 6 lbs

Toxirn Owner Experiences

13 Years
2 People
Dazey has been with us through thick and thin. She adapts to whatever we are doing, and she has the heart of a lion. She is definitely a family member and very much loved.
6 months, 3 weeks ago
5 Years
2 People
House & Yard
Buster loves running and playing with his Toxirn buddy. He is a ferocious mouser and catches small rabbits as well. He is incredibly dedicated and loyal, loves hanging with the family and hanging out in my lap. Requires bathing about once a month or when he rolls in bat guano! Doesn’t care for young children and can bark at strangers. Great watch dog at the house, very protective of his human mom.
1 year, 3 months ago
3 Years
5 People
House & Yard
Yuki is a very nice and calm dog. She loves people but I cant say the same for dogs. Instead of parking afar, she attacks them, even the little ones. Aside from that she's a very calm and nice dog. She loves to cuddle and sleep, alot.
1 year, 7 months ago
2 Years
4 People
House & Yard
Playing chase
Shenzi acts like an idiot most of the time but I swear she’s smarter than she looks. We adopted her from the OSPCA when she was 4 months old as a birthday present for my husband because she wouldn’t go to anyone but him and he thought he had finally bonded with a dog. We changed her name to Shenzi after the character from The Lion King because she looked like a hyena. 2 weeks later when the adoption was final she stopped caring about my husband. She stopped cuddling him, stopped following him around, and wouldn’t listen to him. She had found a new person to bond with, me. We joke that she knew the only way into the house was by suckering my husband because I wasn’t a fan of small dogs. Ever since then if I’m sitting down she’s on my lap, if I’m up and moving she’s following me around or waiting just outside the door. She’ll follow me to the car when I’m bringing groceries in and won’t leave a 3 foot radius around me. She’s a very high anxiety dog and doesn’t like leaving the house for even walks. We have 2 other dogs and a cat and for the most part she’s good with them though she can go through periods where she refuses to share my attention with anyone. She’s terrified of kids and new people but hasn’t bitten one because she usually tries to climb me to get away. She’s extremely stubborn and took forever to house train, even now if she sees any sort of rug or mat on the floor she assumes it’s a pee pad. Ultimately while she has her issues and quirks she’s a really sweet, fairly low maintenance dog that stole my heart.
1 year, 8 months ago
18 Years
2 People
Bath time
Playing catch,snuggling by fire,
I got my Spike when he was 12 weeks,he was the most lovable,protective and feisty little guy. He was always by my side. He loved playing catch with atennis ball even though the ball was bigger than his mouth ,he'd never miss! He was a very good boy although stubborn and very persistent. In his late years very territorial, marking everything in view so i had him wear a pamper diaper and let me tell you, it never slowed him down, he walked aroung tough/tuff as ever like he owned the world. Which he did, he owned our world and my heart. Very healthy all his life til his 17nth year. Started slowing down gradually. This past Saturday i could see he was in distress ,old age had taken its toll. We went to vet. Heart failure was diagnosed. He went over the rainbow bridge peacefully in my arms. I love that little guy more than i can say. Most loving,protective, faithful friend and family member. Hug your babies!
1 year, 10 months ago
Book me a walkiee?
Sketch of smiling australian shepherd