If you are on a yard that does not have two make that one, now - evergreen trees and a couple of lilac bushes ...we would suggest you retreat and recheck your coordinates!
Despite the title, for the sake of the neighbours it would probably be a good idea to avoid searching for this one at abnormal night time hours!
(On 2nd thought regarding doorbell (1) not between 10:00 pm and 9:00 am and (2) not if you are going to ring and run!)