The Miniature American Shepherd (MAS): A Compact Canine Companion

The Miniature American Shepherd, often referred to as the "Mini Aussie," is a delightful and intelligent herding breed that has captured the hearts of dog enthusiasts around the world. Bred from the Australian Shepherd, this pint-sized version maintains the charm, agility, and intelligence of its larger counterpart while fitting snugly onto your lap. Read on to learn more about the history, characteristics, and care requirements that make the Miniature American Shepherd a must have addition to families and individuals alike! History: The history of the Miniature American Shepherd is intricately linked with its larger cousin, the Australian Shepherd. Originating in the United States in the 1960s, the breed was developed by selectively breeding smaller Australian Shepherds to create a more compact version without sacrificing the intelligence, herding instincts, and versatility of the original breed. As a result, the Miniature American Shepherd emerged as a distinct and charming companion, excelling not only in herding tasks but also in various dog sports and activities. There’s nothing these little dogs can’t do! Characteristics: 1. Size and Appearance: The Miniature American Shepherd is a well-balanced, medium-sized dog with a coat of moderate length and texture. Standing between 13 to 18 inches at the shoulder, and weighing between 20 to 40 pounds, these dogs exhibit a sturdy and athletic build. Their striking coat comes in a variety of colors, including black, blue merle, red, and red merle, often accompanied by striking blue or amber eyes. 2. Intelligence and Trainability: Renowned for their intelligence, Miniature American Shepherds are quick learners and thrive on mental stimulation. They excel in obedience training and are often used in dog sports like agility, herding trials, and obedience competitions. Their eagerness to please and strong work ethic make them adaptable to almost any activity you’d like them to learn. 3. Herding Instincts: As a herding breed, Miniature American Shepherds retain strong instincts for controlling and guiding livestock. While they may not be herding sheep on a daily basis, they often exhibit herding behaviors with family members or other pets. Proper socialization and training from an early age help channel their instincts into positive and controlled behaviors. 4. Temperament: These dogs are known for their affectionate and loyal nature. Miniature American Shepherds form strong bonds with their families and are often described as "velcro dogs," preferring to stay close to their owners. Their friendly disposition makes them excellent companions for families, singles, and seniors alike. Care and Maintenance: 1. Exercise Needs: Despite their smaller size, Miniature American Shepherds have ample energy and require regular exercise to keep both their bodies and minds stimulated. Daily walks, playtime, and mentally stimulating activities are essential to prevent boredom and ensure a happy, well-adjusted dog. 2. Grooming: The breed's double coat requires regular grooming to keep it in good condition. Brushing several times a week helps prevent matting and reduces shedding. Additionally, attention should be given to their ears, eyes, and teeth to maintain overall health. 3. Health Considerations: Generally, a robust breed, Miniature American Shepherds may be prone to certain health issues such as hip dysplasia, eye problems, and certain genetic conditions. Here at Weeping Willow, we genetically test for these conditions prior to breeding so we can give a Lifetime Health Guarantee against serious genetic illness on all our puppies. Regular veterinary check-ups and a balanced diet are crucial for their well-being. The Miniature American Shepherd is a delightful and versatile breed that brings joy and companionship to households of all sizes. With their intelligence, agility, and affectionate nature, these dogs make excellent family pets and are well-suited for individuals seeking an active and loyal companion. By understanding and meeting their needs for exercise, training, and grooming, owners can ensure a happy and fulfilling life for their Miniature American Shepherd.

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The AKC Miniature American Shepherd Breed Standard

General Appearance

The Miniature American Shepherd is a small size herding dog that originated in the United States. He is slightly longer than tall with bone that is moderate and in proportion to body size and height without extremes. Movement is smooth, easy, and balanced. Exceptional agility combined with strength and stamina allows for working over a variety of terrain. This highly versatile, energetic dog makes an excellent athlete with superior intelligence and a willingness to please those to whom he is devoted. He is both a loyal companion and a biddable worker, which is evident in his watchful expression. The double coat of medium length and coarseness may be solid in color or merled, with or without white and/or tan (copper) markings. He traditionally has a docked or natural bobtail.

Size, Proportion and Substance

Size: Height for dogs is 14 inches up to and including 18 inches at the top of the withers. Height for bitches is 13 inches up to and including 17 inches at the top of withers. Disqualification: under 14 inches and over 18 inches for dogs; under 13 inches and over 17 inches for bitches. The minimum heights set forth in this breed standard shall not apply to dogs or bitches under six months of age.

Proportion: Measuring from the point of the shoulder to the point of the buttocks and from the highest point of the shoulder blade to the ground, he is slightly longer than tall.

Substance: Solidly built with moderate bone in proportion to body height and size. Structure in the dog reflects masculinity without coarseness. Bitches appear feminine without being slight of bone.


The head is clean-cut, dry, and in proportion to the body.

Expression: Alert, attentive and intelligent. May express a reserved look and/or be watchful of strangers.

Eyes: The eyes are set obliquely, almond shaped, neither protruding nor sunken and in proportion to the head. Acceptable in all coat colors, one or both eyes may be brown, blue, hazel, amber or any color combination thereof, including flecks and marbling. The eye rims of the reds and red merles have full red (liver) pigmentation. The eye rims of the blacks and blue merles have full black pigmentation.

Ears: Are triangular, of moderate size, set high on the head. At full attention they break forward and over, or to the side as a rose ear. Severe Fault: Prick ears and ears that hang with no lift.

Skull: The crown is flat to slightly round and may show a slight occipital protuberance. The width and the length of the crown are equal.

Stop: The stop is moderate but defined.

Muzzle: The muzzle is of medium width and depth and tapers gradually to a rounded tip without appearing heavy, square, snipy, or loose. Length is equal to the length of the crown.

Planes: Viewed from the side, the muzzle and the top line of the crown are slightly oblique to each other, with the front of the crown on a slight angle downward toward the nose.

Nose: Red merles and reds have red (liver) pigmentation on the nose leather. Blue merles and blacks have black pigmentation on the nose leather. Fully pigmented noses are preferred. Noses that are less than fully pigmented will be faulted. Severe Fault: 25-50% un-pigmented nose leather. Disqualification: Over 50% un-pigmented nose leather.

Bite: A full complement of teeth meet in a scissor bite. Teeth broken, missing or discolored by accident are not penalized. Disqualification: Undershot or overshot bite.

Neck, Topline and Body

The overall structure gives an impression of depth and strength without bulkiness.

Neck: The neck is firm, clean, and in proportion to the body. It is of medium length and slightly arched at the crest, fitting well into the shoulders.

Topline: The back is firm and level from the withers to the hip joint when standing or moving.

Loin: The loin is strong and broad when viewed from the top.

Croup: The croup is moderately sloped.

Body: The body is firm and well conditioned.

Chest and Ribs: The chest is full and deep, reaching to the elbow, with well sprung ribs.

Underline: The underline shows a moderate tuck-up.

Tail: A docked or natural bobtail is preferred. A docked tail is straight, not to exceed three (3) inches. The undocked tail when at rest may hang in a slight curve. When excited or in motion the tail may be carried raised with the curve accentuated.


The forequarters are well conditioned and balanced with the hindquarters.

Shoulders: Shoulder blades (scapula) are long, flat, fairly close set at the withers, and well laid back.

Upper Arm: The upper arm (humerus) is equal in length to the shoulder blade and meets the shoulder blade at an approximate right angle. The forelegs drop straight and perpendicular to the ground.

Elbow: The elbow joint is equidistant from the ground to the withers. Viewed from the side, the elbow should be directly under the withers. The elbows should be close to the ribs without looseness.

Legs: The legs are straight and strong. The bone is oval rather than round.

Pasterns: Short, thick and strong, but still flexible, showing a slight angle when viewed from the side.

Feet: Oval shaped, compact, with close-knit, well-arched toes. Pads are thick and resilient; nails are short and strong. The nails may be any color combination. Dewclaws should be removed.


Width of hindquarters is approximately equal to the width of the forequarters at the shoulders.

Angulation: The angulation of the pelvis and upper thigh (femur) mirrors the angulation of the shoulder blade and upper arm, forming an approximate right angle.

Stifle: Stifles are clearly defined.

Hock: The hocks are short, perpendicular to the ground and parallel to each other when viewed from the rear.

Feet: Feet are oval, compact, with close knit, well arched toes. Pads are thick and resilient; nails are short and strong. The nails may be any color combination. Rear dewclaws should be removed.


Moderation is the overall impression of the coat. Hair is of medium texture, straight to wavy, weather resistant, and of medium length. The undercoat varies in quantity with variations in climate. Hair is short and smooth on the head and front of the legs. The backs of forelegs and breeches are moderately feathered. There is a moderate mane and frill, more pronounced in dogs than in bitches. Hair may be trimmed on the ears, feet, back of hocks, pasterns, and tail, otherwise he is to be shown in a natural coat. Untrimmed whiskers are preferred. Severe Fault: Non-typical coats.


The coloring offers variety and individuality. With no order of preference, the recognized colors are black, blue merle, red (liver) and red merle. The merle will exhibit in any amount, marbling, flecks or blotches. Undercoats may be somewhat lighter in color than the topcoat. Asymmetrical markings are not to be faulted.

Tan Markings: Tan markings are not required but when present are acceptable in any or all of the following areas; around the eyes, on the feet, legs, chest, muzzle, underside of neck, face, underside of ear, underline of body, under the base of the tail and the breeches. Tan markings vary in shades from creamy beige to dark rust, with no preference. Blending with the base color or merle pattern may be present on the face, legs, feet, and breeches.

White Markings: White markings are not required but when present do not dominate. Ticking may be present in white markings. White on the head does not predominate, and the eyes are fully surrounded by color and pigment. Red merles and reds have red (liver) pigmentation on the eye rims. Blue merles and blacks have black pigmentation on the eye rims. Ears fully covered by color are preferred. Severe Fault: White markings covering over 25% of an ear. White markings may be in any combination and are restricted to: the muzzle, cheeks, crown, blaze on head, the neck in a partial or full collar, chest, belly, front legs, hind legs up the hock and may extend in a thin outline of the stifle. A small amount of white extending from the underline may be visible from the side, not to exceed one inch above the elbow. The hairline of a white collar does not exceed the withers at the skin. If a natural undocked tail is present, the tip of the tail may have white. Disqualifications: Other than recognized colors. White body splashes, which means any conspicuous, isolated spot or patch of white on the area between withers and tail, on back, or sides between elbows and back of hindquarters.


Smooth, free, and easy; exhibiting agility of movement with a well-balanced, ground-covering stride. Fore and hind legs move straight and parallel with the center line of the body; as speed increases, the feet, both front and rear, converge toward the center line of gravity of the dog, while the back remains firm and level. When traveling at a trot the head is carried in a natural position with neck extended forward and head nearly level or slightly above the topline. He must be agile and able to turn direction or alter gait instantly.


The Miniature American Shepherd is intelligent, primarily a working dog of strong herding and guardian instincts. An exceptional companion, he is versatile and easily trained, performing his assigned tasks with great style and enthusiasm. Although reserved with strangers, he does not exhibit shyness. He is a resilient and persistent worker, who adjusts his demeanor and arousal appropriately to the task at hand. With his family he is protective, good natured, devoted and loyal.



  • Under 14 inches and over 18 inches for dogs; under 13 inches and over 17 inches for bitches. The minimum heights set forth in this breed standard shall not apply to dogs or bitches under six months of age.
  • Over 50% un-pigmented nose leather.
  • Undershot or overshot bite.
  • Other than recognized colors. White body splashes, which means any conspicuous, isolated spot or patch of white on the area between withers and tail, on back, or sides between elbows and back of hindquarters.

AKC One-Time Disqualifications

  • Blindness
  • Deafness
  • Castration, spayed
  • Attacks or vicious behavior
  • Changed by artificial means

AKC Three-Time Disqualifications

  • Undescended testicles
  • Testicles not present
Breed Standard taken from: Breed Standard | MASCUSA