I can' t make the decision for you as to or not, tag the deer. I am a guide for IMB Outfitters in Pike Co, Illinois and I have tracked many deer this year alone, some for a 1000 yards or better and never found them. Many of them make it to property that borders ours and we are not allowed to look for them there. Not all the property owners are this way though and we do recover many that make it off our properties. When we have found a deer after the hunter has left, we notify him so he can claim the rack and tag it. We do make every effort to find those deer shot, but sometimes it is the buzzards that lead you to the kill.