Why dogs bark

Woof.
Woof.
Woof.

The first time a puppy does it, it’s cute. Perhaps even the second.

There comes a point, however, when barking becomes problematic. Your evening can be ruined when your dog barks at the television or the road. Our mostly boxer, Winnie, was affectionately called Barkydog for a reason. Seemingly at random, she would set off barking at the neighbours, the television, and vehicles passing by. Even then, we were able to quell the barking by telling her to stop.

It isn’t as easy in the kennel. Day or night, barking can go from interruption to nuisance to something even worse. Bark at the wrong dog and a fight could erupt. Bark too long overnight and the neighbours complain. This escalation risk is one reason kennels pay close attention to arousal thresholds and overstimulation, which we discuss in more depth in redlining in dogs and behavioural overload.

Here are seven reasons why a dog will bark.

1) Dogs bark from excitement
This is the easiest to recognize during play. They get amped up. We see it often at the kennel. The good news is it usually passes once your dog switches gears into a calmer state—one reason structured downtime after play matters, as explained in why dogs need downtime.

2) Dogs bark for attention
“Look at me,” they say. Attention barking is difficult to correct when a dog has learned it works. At home, be mindful of your reaction so you reward the behaviour you want emulated, not the behaviour you want to stop.

3) Dogs bark from boredom
Boredom is connected to attention. It often develops when dogs are left without anything to do (yard, crate, long quiet stretches). This barking may come with other repetitive behaviours.

4) Fear, anxiety, and territorial behaviour
Limited socialization, prior attacks, or strong territorial instincts can lead to barking (and sometimes snapping). Dogs barking for this reason are often in a heightened stress state.

5) Dogs bark from pain
Pain changes behaviour. Some dogs bark to keep you away because they don’t want to be touched. Pain can be obvious (limp) or subtle (internal discomfort). Even family members may not be allowed near.

6) Reactivity or startle responses
Some dogs become reactive after frightening experiences. This can show up on leash or off leash. It can also be “contagious”—one dog barks and others join in, especially in kennel environments. Sometimes our own tension on leash can unintentionally reinforce the pattern.

7) Dementia
Near the end of Winnie’s life, she developed dementia and would bark at the wind. Unfortunately, for dogs with cognitive decline, there’s no cure, and barking can increase over time. In Canada, the University of Guelph’s Ontario Veterinary College provides owner-facing guidance on cognitive dysfunction in senior dogs, including behavioural changes like increased vocalization. Here is a link to the college of Vet Medicine at Cornell Universty.

How to stop the barking

Understanding whether a dog’s barking is acute or systemic is important. Correcting barking takes time and consistency. Too often, our desire to help teaches puppies that barking is all they need to do to get what they want. Instead, we need to recognize the signals dogs give and respond in ways that build calmer defaults.

Ignore attention barking
When you recognize attention barking, ignore it. Wait for quiet, then reward silence. Yelling can still be a reward if the dog wanted engagement. Consistency across the household matters.

Engagement
If barking starts from boredom or attention-seeking, structured engagement can redirect the brain onto something productive.

Exercise
When a dog is tired, they often sleep. At the kennel, we aim to give guests as much exercise as is appropriate. At home, exercise also doubles as engagement and reduces demand barking.

Environmental enrichment
At the kennel, we start with music, but sometimes barking can cascade. Some dogs need a quieter zone. With two buildings, we can separate dogs to reduce stress.

Teach new commands
Start with sit/stay and build toward “place” (bed/crate). Dogs comfortable with “place” often develop coping skills for being left alone.

Mental stimulation
Fillable chew toys, treat puzzles, and safe chew options help dogs settle into a calmer state.

Addressing separation anxiety

Separation anxiety can look like barking, scratching at doors, and spilling food or water. It can lead to boredom, but more commonly shows up as attention-seeking. The pandemic was especially difficult for many dogs as routines changed and people returned to work.

For anxious dogs, options often include:

• Training
• Medication (vet-guided)
• Desensitization (exposure therapy)

Separation anxiety is complex and often benefits from support from your vet and a qualified behaviour professional. Medication discussions generally fall into long-acting support used alongside training and shorter-acting options for event-based distress.

Remove them from the stressful situation

When dogs are stressed, barking is often only the beginning. Whether it’s fear or anxiety, a dog in a heightened state may be unreachable until you remove them from the trigger. In some cases, continued escalation makes engagement unsafe—another reason an emergency contact is important if a dog cannot be soothed.

Technology

New tools exist to curb barking. Use caution and speak with your vet—some tools can have unintended consequences.

What a kennel needs

Our goal is an environment that reduces stress, but we rely on honest intake info and preparedness. Dogs can behave differently in a kennel environment. We invite you to bring comfort items (toys, clothing with your scent, a bed, or a crate). If barking negatively affects other guests and a dog cannot be soothed, we may ask you to pick them up.