Boy, they'd be deadly on moose. We have a Phantom 3 Pro series drone here at work. You'd be able to sit on your ATV and cover a 2000 acre cutover in under 10 mins, with video footage of the animal(s) and GPS waypoint. If you saw multiple animals then you'd call the rest of your party over to group hunt the exact area that the animals are in. Even to just locate any tracks in the snow after a fresh snowfall. It wouldn't take you very long to find a moose using this technology. I'm sure there's already people doing it. Think of the potential for a high altitude sheep hunt, or for finding bedded mule deer, elk, etc.