@doctorLURK @alan I read on more deeply, and there were a few relevant points. Almost 1000 samples in the collection and following a CBC interview:

"Note to Canadians: Nora points out that Canadians are currently underrepresented on the map. So, this is your chance to change that! Send in your samples...."

It's funny because I can pick up different accents just from the different parts of Toronto