Just to repeat what Sean said, use telemetry. I just got back from my 4th outing lamping, still struggling to catch anything. He's been hitting the rabbits but not holding until tonight, after a flight of about 100m he hit a rabbit hard they both spun up 4 feet into the air, he then went for the rodeo ride of his life. By the time I got there they'd both disapeared, so out with the telemetry, it was pitch black, I'm a mile from the nearest road and my truck, thank feck I got a signal. After 5 minutes of searching with the telemetry and lamp I spot the tips of his wings a foot down a rabbit hol