Know of guys who saw some a decade ago near Bonnyville. They are domesticated wild turkeys that have been released into the wild, similar to pheasants at a release site except these were done illegally.
Easterns and even merriams are hearty enough for most areas of the fringe and prairies in Alberta. They do fine in Ontario and Quebec (and Manitoba) where they see a lot more annual snow fall. Birds need good roosting habitat and that is where I feel Alberta severly lacks.
This picture in the link is not a merriam by the way...
http://aep.alberta.ca/fish-wildlife/...ms-turkey.aspx
http://outdoorsmenforum.ca/showthrea...t=south+dakota