[esquire]

Among more recent migrations, I would think the relatively steady of flow of people from all over Canada but especially Ontario, Saskatchewan and Manitoba into Alberta from the 70s to the early part of this decade would have to be up there.

Certainly in Manitoba and Saskatchewan you'd have a hard time finding someone whose circle of friends and relatives didn't include at least a couple of people who moved to Alberta... it dwarfs movement to other provinces. A good number might have gone to BC or Ontario, and there might have been a smattering to the other provinces. But they probably pale in number to those who pulled up stakes for Alberta.