Understanding Prey Drive: The Science Behind Your Dog’s Chase

If you’ve ever watched your dog suddenly freeze mid-walk, drop into a crouch, lock eyes on a pigeon… and then explode forward like a missile, you’ve seen prey drive in action.

It can look intense. Sometimes even alarming. But it isn’t bad behaviour, defiance, or a lack of training. It’s instinct — deeply wired into what it means to be a dog.

Prey drive is the natural motivation to orient toward, chase, and sometimes capture moving things. It evolved to help animals survive. In modern dogs, it still shows up — just in less helpful contexts, like squirrels, cyclists, skateboards, cats, or wildlife across the park.

And importantly, prey drive isn’t limited to “hunting dogs”. Terriers, herding breeds, sighthounds, companion breeds, and yes, even tiny dogs can all show strong chase behaviours. The difference isn’t whether prey drive exists, but how it’s expressed.


Prey drive is a sequence, not a single behaviour

One of the most helpful ways to understand prey drive is to see it as a behavioural sequence rather than a single action.

​In its full form, that sequence looks like this:
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• Orienting — scanning, sniffing, tracking movement
• Stalking — freezing, crouching, creeping forward
• Chasing — rapid pursuit
• Capture and shake — often seen when dogs shake toys
• Consumption — a phase most pet dogs never reach

​Not every dog completes every step. Herding breeds often orient and stalk but don’t grab. Terriers tend to chase, grab, and shake. Some dogs explode straight into the chase without much warning at all.

Understanding where your dog tends to “enter” this sequence is key. The earlier you can intervene, the more successful and humane your training will be.


Why prey drive can become a problem

Prey drive itself isn’t a flaw. In fact, it fuels many behaviours we actively encourage: fetch, tug, toy play, scent work, and structured sports.

The problem arises when the chase becomes unsafe.

A dog who is fully locked into the sequence may ignore cues, traffic, people, or other dogs. That intense arousal — the dopamine rush of the chase — is powerfully reinforcing. The more often a dog practises chasing, the more efficient and motivated they become at doing it again.
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This isn’t stubbornness. It’s learning.
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That’s why simply telling dogs to “stop” rarely works once they’re already in full pursuit. Management and prevention matter just as much as training.
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Managing prey drive safely and ethically

When working with dogs who love to chase, there are five broad principles that consistently help.

1. Prevent rehearsal

Chasing is fun — enormously fun. So the first step is limiting opportunities for your dog to practice it.

That might mean using fixed-length leads rather than retractables, secure fencing, baby gates, or careful separation from smaller animals. If a dog doesn’t get reinforced for chasing, the habit weakens over time.

When introducing a new pet to a prey-driven dog, supervision isn’t optional. Good management protects everyone involved.

2. Teach incompatible behaviours

While preventing unwanted behaviour, we actively teach behaviours that can’t happen at the same time as chasing.

This could be orienting to you, a strong “watch me”, a disengage-and-reorient game, or even moving toward you instead of away. The key is choosing behaviours your dog can perform easily and finds genuinely reinforcing.

You’re not suppressing instinct — you’re giving it a different outlet.

3. Practice with mild versions of triggers

Once your dog can respond reliably in low-distraction environments, you can carefully introduce controlled versions of the trigger.

Distance matters. Leashes matter. Reinforcement matters. Success might initially be nothing more than a brief glance away from the chase target — and that’s worth reinforcing.

Progression should be slow and intentional.

4. Have a backup plan

If your dog doesn’t respond to a cue, calmly guide them away and reinforce that choice. Then reassess your setup.

In some cases, mild space-blocking — calmly stepping between your dog and the trigger — can interrupt the sequence. But this should only be used after you’ve built strong reinforcement histories for alternative behaviours, not as a primary strategy.

​5. Be patient and consistent

Chasing habits don’t disappear overnight. Expect weeks or months, not days. Consistency, repetition, and realistic expectations make all the difference.
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Emergency skills like a strong “leave it” or recall can also interrupt the sequence before it fully escalates — but they work best when paired with good management and reinforcement, not pressure.
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You don’t need to eliminate prey drive

Trying to suppress prey drive entirely often backfires. Frustration builds. Behaviour leaks out elsewhere.

A far more effective approach is to channel it.

Dogs who love sniffing often thrive in scent work or nose games. Dogs obsessed with chasing may find healthy outlets in flirt poles or lure coursing. Terriers who dig? Earthdog trials were designed for them.

When dogs are allowed to express their instincts safely and appropriately, they’re often calmer, more responsive, and easier to live with.

Prey drive isn’t a problem to fix. It’s a trait to understand, manage, and work with.
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If your dog has a bit of wild in them, you’re not doing anything wrong. With the right setup, clear training, and ethical support, prey drive doesn’t have to put anyone at risk — and it doesn’t have to take the joy out of life with your dog.

If you’d prefer to watch rather than read, I’ve also made a full YouTube video breaking down prey drive, the chase sequence, and practical management strategies.

You can watch it here:

References:
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McConnell, P. B. (2010, June 15). Chase this, not that. The Other End of the Leash. https://www.patriciamcconnell.com/theotherendoftheleash/chase-this-not-that
​Schade, V. (2023, October 3). Prey drive in dogs. PetMD. https://www.petmd.com/dog/behavior/prey-drive-dog