The Kooiker is a small sporting dog that makes an immediate impression through the combination of its vivid coloring and its alert, cheerful expression. Standing 14 to 16 inches at the shoulder and weighing 20 to 25 pounds, these dogs are compact without being fragile and athletic without being imposing. The proportions are nearly square, with body length roughly equal to height at the withers, creating a balanced outline that suggests agility and readiness. There is a springiness to how they carry themselves, a lightness in their posture that hints at the quick, playful movement that originally helped them lure ducks.
The head is moderately broad and in proportion to the body, with a gently sloping skull and a well-defined but not abrupt stop. The muzzle is approximately equal in length to the skull, tapering slightly toward the nose without becoming pointed. The nose is black. Eyes are almond-shaped, dark brown, and carry an expression that is simultaneously friendly and alert, the look of a dog paying attention to everything around it while remaining approachable. The ears are moderately sized, set on just above the eye line, and hang close to the cheeks with attractive feathering. The most distinctive ear feature is the potential for black-tipped hair at the ends, called "earrings" in the breed, which not all individuals display but which is highly prized when present.
The body is well muscled for its size, with a level topline, a moderately deep chest that provides adequate heart and lung capacity, and a slight tuck-up at the loin. The ribcage is well sprung but not barrel-shaped, giving the dog the breathing room needed for sustained activity without compromising the agile outline. The neck is moderately long and set smoothly into well-laid shoulders, creating a graceful line from head to body. Forelegs are straight and parallel, with well-boned pasterns that provide cushioning during movement. Hindquarters are well angulated with strong stifle and hock joints, providing the propulsive power behind the breed's characteristic springy gait.
The tail is the Kooiker's calling card and the feature that originally made the breed effective in the duck decoy. Well feathered with a prominent white plume, it curls upward in a gentle arc when the dog is in motion, creating the flash of white that originally caught the attention of curious ducks swimming along the pipe of the eendenkooi. The tail is set on as a continuation of the topline and should never be carried flat or tucked. In movement, the tail's white feathering moves like a banner, and it is one of the first things that draws your eye to a Kooiker at any distance.
The coat is medium in length with a slight wave that adds texture without creating a curly appearance. It should be soft enough to look inviting but structured enough to provide genuine weather resistance. The coloring is orange-red patches on a white background, with the intensity of the orange ranging from a deep chestnut to a lighter gold depending on the individual. Some dogs show black shading or sable through the colored patches. The coat naturally repels dirt to a remarkable degree, a practical feature for a dog that historically spent its working life around ponds and marshes. Feathering appears on the ears, chest, backs of the front legs, thighs, and tail, adding to the breed's refined appearance.
Movement should be light, effortless, and flowing. The breed standard often references the idea of a dog that moves with joy, and watching a well-built Kooiker trot reveals exactly what that means. The gait is efficient and ground-covering without being heavy or pounding. There is an almost bouncing quality to the movement that reflects the breed's lively temperament. Viewed from the front or rear, the legs move parallel, and from the side, you see good reach in front and adequate drive from behind.
Affectionate With Family
★★★★★
The Kooiker thrives on closeness with its family and wants to be involved in everything happening around the house. Their affection is warm, consistent, and often expressed through following their favorite person from room to room.
Good With Young Children
★★★☆☆
Better suited to families with older children who understand gentle handling. The Kooiker's sensitivity means rough play or loud, unpredictable behavior from very young children can overwhelm them.
Good With Other Dogs
★★★☆☆
Can be selective and sometimes reactive around unfamiliar dogs, particularly on leash. Kooikers generally do better with calm, well-mannered dogs they know than in the free-for-all of a dog park.
Shedding Level
★★★☆☆
Moderate shedding year-round with seasonal increases. The coat sheds dirt naturally, which helps keep things manageable between brushings.
Coat Grooming Frequency
★★☆☆☆
A low-maintenance coat that stays presentable with weekly brushing and occasional trimming around the feet. The natural texture repels dirt surprisingly well.
Drooling Level
★☆☆☆☆
The Kooiker does not drool. This is a clean-mouthed breed that keeps its surroundings tidy.
Coat Type
★★★☆☆
Medium-length double coat with slight wave that provides weather resistance. The distinctive feathering on ears, chest, legs, and tail gives the breed its elegant appearance.
Openness To Strangers
★★☆☆☆
Typically reserved with people they do not know. The Kooiker warms up on its own schedule and does best when strangers allow the dog to initiate contact rather than reaching in.
Playfulness Level
★★★★☆
Cheerful and lively, the Kooiker brings genuine joy to play sessions. They particularly enjoy retrieving games and anything involving water, reflecting their sporting heritage.
Watchdog/Protective Nature
★★★☆☆
Alert to changes in their environment and will announce visitors, but not a protective breed in the guardian sense. Their watchfulness serves as awareness rather than defense.
Adaptability Level
★★★★☆
Adapts well to various living situations including apartments, provided exercise and companionship needs are met. The breed's moderate size and relatively quiet nature help in smaller spaces.
Trainability Level
★★★★☆
Intelligent and willing to learn, the Kooiker picks up new skills quickly. Gentle, positive methods work best with this sensitive breed, as harsh corrections cause lasting mistrust.