Like stated before, video cameras for hunting can get very expensive. I don't know how much he is willing to spend, but if he wants to get quality action and outdoor footage then he should expect to spend at least $1000. It is possible to get decent footage from a $500 video camera if he is just looking to preserve some memories.
A good spot to start is this website:
http://www.bestforhunting.com/?page_id=514 They list the best video cameras for hunting and have it broke down by different price ranges. I took the advice and am happy with my purchase. I spent $1000 and get good quality footage from a canon vixia. I forget the exact model, but there is a newer model and the website above has updated and changed things around since then.
Good Luck!