JoeA:
You lucked in -
sask is a fantastic place to hunt migratory birds!!
As per your request for firearms info - do a google search - gov't of canada - firearms registration - they have a 1-800 # you can call - i believe you may be able to do it online!!
Weather is , as in most places unpredictable - but usually in the west it is cool (not freezing).
Hope you are successful - and enjoy canada!!!!!!!