I started ferreting with no locator. Got taught a lot by a fella in Ascot, i was an estate manager and an abundance of rabbits and different ground to ferret. I learnt the old school ways. Listening was the greatest tool you had. Now we had collars on the ferrets with small bells on. Youd be surprised how you can hear that sound next to the burrow if the ferret is moving or even if its killed. If it was laid up for a while and nothing happenning then it was ear to the burrows and see if ye can hear the bell. Many times you would hear it and then get the poker out and prod the ground till ye fo