Where are you flying in to? You're in for a hell of an experience. From what the looks of it the bou should be plentiful making the hardest part of the hunt patience. You'll likely be seeing thousands. If you havn't check out the website for the James Bay Road which also has info on the Trans-Tiaga.

Try this link for the maps, looks like they updated and added the latest map over night.
http://geoboutique.mrnf.gouv.qc.ca/e...esultats.faces