CONDITION
Predatory Behaviour in Dogs
Predatory behaviour in dogs refers to sequences of action that resemble hunting — stalking, chasing, grabbing, shaking — directed at moving objects, animals, or sometimes people. These behaviours are normal parts of canine biology, shaped by ancestry and breed history, but they can become concerning when directed at livestock, wildlife, small pets, or children, or when the intensity or context feels unsafe. Owners often notice a sudden shift in focus when their dog spots something moving: the body may lower, the gaze fixes, and the dog may begin to stalk or chase with little response to calling. In some cases, the behaviour ends with play or curiosity; in others, it escalates to grabbing or shaking. The question is usually not whether the behaviour is present, but how much it intrudes on daily life, what triggers it, and whether the dog can be interrupted or redirected. This page explores the signals that suggest predatory sequences are active, what drives these behaviours at a biological and learned level, how the pattern is assessed, and what approaches exist to manage safety and reduce conflict. It does not cover aggression rooted in fear, frustration, or social conflict, which follow different pathways.
Why this matters now
Predatory behaviours often become more apparent during adolescence, typically between six and eighteen months, as physical coordination matures and the dog begins to explore a wider environment. Certain breeds — sighthounds, herding breeds, terriers — tend to show more intense or persistent predatory sequences, reflecting the traits they were selected for over generations. The behaviour can also become more noticeable after a house move, the arrival of small animals in the household, or increased access to areas with wildlife or livestock.
In many cases, predatory behaviour remains stable across the dog's life, triggered reliably by certain stimuli but manageable within familiar routines. In some individuals, repeated success — catching a squirrel, scattering chickens — can increase the intensity or persistence of the behaviour, as the sequence becomes more rewarding. Conversely, dogs with limited exposure to triggering stimuli may show little change over time, and older dogs often display reduced intensity as physical drive and sensory acuity decline.
Signals & patterns
Early signals
Intense staring at small moving objects
The dog's gaze locks onto birds, squirrels, or small pets with a stillness that feels different from ordinary attention. The body may freeze mid-step, and the dog may become temporarily unresponsive to their name or familiar cues.
Lowered body posture when watching movement
The dog's head and shoulders drop, the tail may lower or become still, and the overall silhouette flattens as they watch something move across the garden or pavement. This is often the moment just before a chase begins.
Brief, explosive chases during play
The dog suddenly accelerates toward a running child, cyclist, or another dog, sometimes circling or nipping at ankles or clothing. The chase may stop as quickly as it started, leaving the dog aroused but not obviously aggressive.
Fixation on sounds or shadows
The dog orients sharply to rustling leaves, the movement of curtains, or light patterns on the floor, sometimes pouncing or pawing at the source. This can occur indoors or outdoors and may interrupt other activities.
Later signals
Sustained stalking over distance
The dog follows a target — livestock, a jogger, a cat — with deliberate, slow movements over tens of metres, maintaining visual contact and adjusting position in response to the target's movement. Recall attempts during this phase often fail entirely.
Grabbing or shaking behaviour after a chase
Once the dog reaches the target, they may seize it with their mouth and shake vigorously, as though trying to immobilise or kill. This can occur with toys, small animals, or clothing, and the dog may be difficult to interrupt even with physical intervention.
Pattern of escaping or barrier frustration
The dog begins to dig under fences, leap gates, or pull intensely toward areas where prey animals are visible or audible. The behaviour may become anticipatory, with the dog waiting at known exit points or windows.
Click to read about the biological mechanisms
How this is usually investigated
Options & trade-offs
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