Over the past month or two, I’ve observed a noticeable increase in noise sensitivity and noise-phobia cases in dogs living in Toronto’s downtown and east-end core. While thunderstorms are expected triggers this time of year, many of these cases reflect a different pattern—chronic, repeated environmental exposure rather than isolated events.

One major contributor is the use of bird deterrent “sound cannons” near the Leslie Barns streetcar facility. These intermittent, unpredictable “pop” sounds occur throughout the day and are perceived by many dogs as highly aversive—often indistinguishable from fireworks.

Clinically, this is presenting not as transient reactivity, but as a shift in baseline arousal, particularly in dogs with existing sensitivity or underlying anxiety. With repeated exposure, I’m seeing:

• Dogs refusing walks
• Panic outdoors (bolting, escape attempts)
• Sudden onset or worsening anxiety

What’s helping (and what isn’t)

Traditional exposure-based approaches are often not appropriate—at least initially. The unpredictability and frequency of these sounds make habituation unlikely, and in many cases we’re seeing continued sensitisation.

What is helping is reducing overall load on the nervous system:

• Temporarily reducing exposure (shorter walks, quieter routes, timing)
• Replacing walks with enrichment where needed
• Prioritising safety over “pushing through”

For many dogs, the short-term goal is stability, not progress.

What to watch for

Clients may not identify the trigger, but often report:

• Sudden reluctance to go outside
• Increased vigilance or startle responses
• Difficulty settling, even at home
• Regression in previously stable dogs

A brief discussion around environment, timing, and recent changes can help identify the pattern.

Where veterinary support is critical

Some dogs are not coping at baseline during these periods of repeated exposure.

When you’re seeing:

• Persistent hyperarousal
• Generalisation of fear
• Inability to recover between events
• Reduced engagement with food or normal activities

…it may be appropriate to consider pharmacological support earlier, rather than waiting for escalation.

The goal is not just symptom management, but preventing further sensitisation and supporting welfare during a sustained stressor.

There is a change.org petition gaining traction regarding the use of these sound cannons. Sharing this with clients and colleagues may help support a more humane solution for pets, wildlife, and the surrounding community.