The Dogs Nobody Pictures on Sheep
When people imagine a herding instinct test, they picture a Border Collie locked onto a flock, or a Kelpie running the backs of sheep. They do not picture a Rottweiler, a fluffy white Samoyed, or a towering Giant Schnauzer. Yet all three turn up at instinct tests, and the good ones surprise their handlers and the spectators alike.
The surprise is really a gap in popular memory. Every one of these breeds was shaped, at least in part, by moving livestock. The instinct that flickers when one of them locks onto a sheep is not a fluke. It is heritage resurfacing. Understanding where that heritage comes from changes how you read your dog in the pen, and it explains why these breeds are allowed to test in the first place.
Rottweilers: The Roman Drover’s Dog
The Rottweiler is a driving breed before it is anything else. Its ancestors travelled with Roman legions as drover dogs, moving the cattle that fed the army, and the breed took its modern name from the German cattle town of Rottweil, where butchers used the dogs to drive stock to market and guard the takings on the way home. The old German nickname, roughly the “Rottweil butcher’s dog,” tells the whole story.
On stock, a Rottweiler works the way its history suggests: upright, forceful, and close, driving from behind rather than gathering with eye. Expect body pressure and confident bumping rather than the crouching, stalking style of a header. A sound Rottweiler reads stock and applies steady, deliberate pressure; it is rarely flashy and rarely fast, but it can be immovably effective. The realistic caution is that this is a heavy, powerful dog, and on light sheep its force needs managing, which puts a premium on calm, suitable stock and a steady handler. The headers-versus-drovers split is worth understanding before you test, and the article on how herding style differs between breeds maps exactly where a driving breed like the Rottweiler sits.
Samoyeds: Reindeer Before Sheep
The Samoyed is the odd one out, and the most misunderstood. Its working heritage is not with sheep or cattle at all but with reindeer, herded across the Siberian tundra by the Samoyede people, alongside hauling sledges and guarding the camp. That mixed job history produced a loose-eyed, independent, upright worker rather than a biddable specialist.
In the pen, a Samoyed with instinct tends to show interest and movement around stock, sometimes gathering, but with more independence and less handler focus than the classic herding breeds. They are thinkers who like to make their own decisions, a legacy of working stock in conditions where a dog often had to act without close direction. Owners should set realistic expectations: a Samoyed is unlikely to work like a Collie, and a strong, honest showing of interest and controlled movement is a genuine success for the breed. The way instinct expresses itself differently across backgrounds is exactly the territory covered for mixed-breed and rescue dogs, and much of that thinking applies to a breed whose herding past is real but unfamiliar.
Giant Schnauzers: The Bavarian Cattle Driver
The Giant Schnauzer was developed in the cattle-rich regions of Bavaria as a drover, bred up in size from the Standard Schnauzer to move cattle and later prized as a powerful all-round working dog. Like the Rottweiler, it is a driver by background, and it brings the same upright, forceful, close-working approach to stock, paired with the sharp intelligence and intensity the Schnauzer family is known for.
A working Giant Schnauzer in the pen is bold, busy, and physical, pushing stock with presence and reading the response. Their drive can tip into over-arousal in a young or under-exercised dog, so as with the other drovers, maturity and calm stock matter. Where the breed’s herding heritage runs in a particular line is partly a question of breeding, and the wider picture of how working ability is passed down is set out in the article on herding instinct, genetics, and breeding.
Why These Breeds Are Eligible at All
This is the question most owners of non-traditional breeds ask, and the answer reveals how the testing bodies think about heritage.
The American Herding Breed Association takes the most open position: AHBA herding tests are available to all breeds and to mixed breeds, on the principle that any dog showing genuine instinct deserves the chance to demonstrate it. That is why you will find Poodles and Pyrenees alongside Collies at AHBA events.
The AKC draws a tighter line. Its herding program is built around the breeds of the Herding Group, but it specifically extends eligibility to a small number of breeds from outside that group on the strength of documented working heritage, the Rottweiler and the Samoyed among them. The Giant Schnauzer, classed by the AKC as a working breed, is best routed through the AHBA, which welcomes it without question. The Australian Shepherd Club of America runs its own instinct program as well, with its own eligibility rules. The practical takeaway is simple: if your breed is not in the Herding Group, check each organisation’s eligibility list before booking, because the answer genuinely varies between bodies.
What Success Looks Like
For these breeds, set the bar where it belongs. You are not hoping for Border Collie polish. You are looking for honest interest in the stock, controlled movement rather than panic or pure chase, and the willingness to apply and release pressure that marks real herding over prey drive. An evaluator who knows the drover breeds will score that fairly, weighing it against what the breed was built to do rather than against a Collie’s standard. The criteria under the evaluation topic explain how that judgement is made. A Rottweiler that calmly walks a stubborn ewe across the pen, or a Samoyed that gathers loose sheep and brings them to you, is showing exactly the heritage that earned its breed a place in the pen.