They likely spread rocky mountain fever instead, if they are dog ticks like we have in Colorado.

Albertan here too. Can confirm no rats

My friend got Lyme disease from a tick though so I can't agree with that part

> the ticks here don't spread Lyme disease.

this is out of date information unfortunately. With warming climate, the black-legged tick has spread into Alberta and samples have been found with the Lyme disease bacterium.

https://edmontonjournal.com/news/local-news/tick-lyme-diseas...