Need a license. Can argue that sitting and watching is considered "laying in wait for". You are allowed to let him shoot your firearm during target practice, but not hunting. Even bush stomping can be seen as chasing/pursuing.
MNR definition of hunting:
http://www.mnr.gov.on.ca/stdprodcons...ent/239841.pdf
Includes lying in wait for, searching for, being on the trail of, pursuing, chasing or shooting at wildlife, whether or not the wildlife is killed, injured, captured or harassed. You need a hunting licence to do any of these things, except where the Fish and Wildlife Conservation Act, 1997, states otherwise.