What are they?

saskatoon berries?

I had to look them up online. We call them Juneberries in the States, and they are quite .

We also have chokecherries that grow wild. Definitely not as edible off the plant, but makes great jellies and syrups.

apparently our city Saskatoon is named after them. Latin name Amelanchier alnifolia and also called juneberries

I have never seen or heard of those before

They are quite abundant on the Canadian prairies but I've seen them also in BC.