Based on what I've seen in the last 4 weeks, don't scrimp on ammo unless you are OK buying more when you get here.
I thought there might have been a serious winter kill around Calgary due to the extended snow cover and lower than usual temperatures this winter. Seeing dozens of them sitting on top of 3' snow cover 4 weeks ago leads me to believe they made it through OK.
They need to be dealt with before their breeding cycle expands the population.