You've caught one.
Then another.
Then two weeks later, there's another dropping in the pantry.
Why do the mice keep coming back?
The answer may be that you're treating the result rather than the source.
Reason 1: The Entry Point Is Still Open
If mice can continue entering, catching the mice already inside doesn't stop new ones.
Reason 2: Food Is Still Available
Pet food, bird seed, garbage, and pantry items can continue attracting rodents.
Reason 3: You're Missing Their Travel Route
A trap placed where it's convenient for you isn't necessarily placed where it's useful.
Look for physical evidence.
Reason 4: There Is More Than One Mouse
Catching one mouse doesn't establish that there was only one.
Continue monitoring.
Reason 5: You're Focusing Only Indoors
The problem may start outside.
Inspect the building perimeter and surrounding property.
Reason 6: You're Using Only One Control Method
Health Canada specifically recommends an integrated approach and advises that poisoned bait shouldn't be the only rodent-control method used.
That's an important principle even beyond bait:
Don't treat rodent control as a single-product problem.
Keep Track of Recurring Activity
Note when and where you find new evidence. If droppings reappear in the same cupboard or sightings continue near the garage, that pattern can help guide inspection. Share those observations with your technician so the assessment can focus on recurring activity and possible access points.
Frequently Asked Questions
Why do mice return after trapping?
Continuing entry, available food, or multiple rodents may explain recurring activity.
Does catching a mouse solve the problem?
It solves the immediate problem of that individual mouse. Further inspection determines whether a broader issue remains.
How do I find where mice are entering?
Inspect foundations, doors, utility penetrations, vents, and other exterior vulnerabilities.
Can mice return every winter?
Properties that continue providing access, food, and shelter may experience recurring rodent pressure.
Break the Cycle
Instead of repeatedly reacting to the next mouse, establish a broader protection strategy.
Get Mosquito.Buzz Ottawa's 4-Visit Rodent Protection Program for $375
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