First off, where in Alberta are you headed for moose?With an outfitter.family or friend sponsered?If you want to really see a grizzly up close I'd recommend using a moose call as they are allways looking to fatten up before their winter nap.Seriously though ,wolves are usually incidentally shot or over baits andI suppose they might respond to a varmint call.A coyote howler might get them in as wolves particularly enjoy killing a coyote if he's careless same as a coyote catching a fox.What gun are you packing as picking a controlled expanding bullet and placement is more important than caliber?Moose are dull witted ,easy to kill and stand and take it not running off when hit good.Harold