Why Dogs Bark at Other Dogs: Understanding Reactive Behaviour Using Force-Free Training

Understanding Why Dogs Bark at Other Dogs

Barking at other dogs is one of the most common behavioural concerns owners seek help for. Walks that were once enjoyable can quickly become stressful when a dog begins barking, lunging, whining, or reacting intensely around other dogs.

Many owners are told their dog is being:

• Dominant

• Naughty

• Stubborn

• Protective

• Aggressive

In reality, most reactive barking is rooted in emotion rather than disobedience.

Dogs bark at other dogs for many different reasons, including:

• Fear

• Anxiety

• Frustration

• Over-arousal

• Excitement

• Previous negative experiences

• Lack of social confidence

• Learned associations

Understanding the emotional cause behind barking is essential for creating effective, force-free behaviour change.

What Is Reactive Dog Behaviour?

Reactive dogs tend to respond excessively to specific triggers.

Common reactive behaviours include:

• Barking

• Lunging

• Growling

• Whining

• Spinning

• Freezing

• Pulling towards or away from triggers

Reactivity is often a sign that a dog is struggling emotionally in a situation.

Force-free dog training focuses on helping dogs feel safer, calmer, and more capable around their triggers.

Why Punishment Often Makes Barking Worse

Many traditional training approaches attempt to stop barking using:

• Lead corrections

• Slip leads

• Prong collars

• Shock collars

• Verbal punishment

• Physical corrections

While these methods may suppress barking temporarily, they often increase:

• Fear

• Anxiety

• Stress

• Frustration

• Negative emotional associations

For example, if a dog already feels worried about other dogs, adding pain or intimidation when another dog appears can make the emotional response even stronger.

Force-free training focuses on changing how the dog feels — not simply suppressing behaviour.

Understanding Thresholds

Every dog has a threshold.

A threshold is the point at which a dog becomes too emotionally overwhelmed to learn, think clearly, or respond calmly.

When dogs go over threshold, owners may see:

• Barking

• Lunging

• Vocalising

• Pulling

• Hyper-fixation

• Inability to take food

• Ignoring cues

Distance plays a huge role.

A dog may feel comfortable observing another dog from 50 metres away but become overwhelmed at 10 metres.

Working below threshold is one of the foundations of successful reactive dog training.

Common Reasons Dogs Bark at Other Dogs

Fear-Based Reactivity

Many reactive dogs are attempting to create distance from something they find worrying.

Barking can function as:

“Please stay away from me.”

These dogs often benefit from increasing distance, reducing pressure, and building positive associations.

Frustration-Based Reactivity

Some dogs desperately want to greet or interact but become frustrated by lead restraint.

This frustration can result in:

• Barking

• Whining

• Lunging

• Spinning

These dogs often need support with impulse control, calmness, and engagement.

Learned Behaviour

If barking repeatedly causes other dogs to move away, the behaviour may become reinforced over time.

The dog learns:

“Barking works.”

This does not mean the dog is choosing to be difficult.

It means the behaviour has successfully reduced discomfort or frustration in the past.

To help understand why your dog barks at other dogs and how to stop it then we can help!

Struggling with a reactive dog? Secure a free 15-minute phone assessment to discuss a tailored plan. No judgment, just science-backed support

https://college4canines.co.uk/behaviour-northumberland

Author

Written by Denise Devereux Bsc (Hon) Canine Behaviour, FdSc Applied Canine Behaviour & Training. Denise is an accredited force-free behaviourist currently completing her MSc in Clinical Animal Behaviour at the University of Edinburgh

https://college4canines.co.uk/about-us

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