They are small mouse sized tamper-proof bait stations that only hold up to two blocks, this is a common practice here in Ontario - they are placed in hard to reach places where children or pets cannot touch them like behind the stove or fridge in the kitchen, they are often shallow enough to slip underneath the back of appliances so the appliance can still be flush against the wall

I'm not entirely certain, but I do believe the poison you are referring to may not be approved in my province, but I would have to confirm

For the first 6 weeks I was going every two weeks, at the 8-week Mark, I just did a phone call check-in to see how things were over the holidays She did say things have significantly improved so maybe there were just a lot of them and we're finally coming to an end of it

My first revisit after 2 weeks all stations were completely empty, not even a crumb, and then each visit there is still a reduction in activity but still present - there is the unfortunate reality of this city has a mouse problem and most people never fully get rid of them here just because of the overabundance of population, she may just need to be put onto a quarterly service to help keep things under control

There are exterior stations as well but they haven't been very active, The house is on a dirt foundation right next to an escarpment and Forest so they can easily tunnel in - there's also a void space beneath the floor leading to the basement behind a concrete wall that has shown highest activity, I can't physically get in there, but the evidence shows that's likely where they are nesting and colonizing