Not your woods , not your decision . They apparently already know that the Dad hunts alone sometimes , and have given him permission to do so . Perhaps you should get with the guy and work out a plan of use and cooperate with each other. Remember , every deer they have go around them will very likely go right toward you . The rule of thumb is usually 20 acres per hunter , but his son isn't likely to do much still hunting from the sound of it , and it's the hunter the deer don't spot who drags one out .

How many others are hunting the same woods that you don't even know about ? The answer might surprise you . Last year I hunted only my 5 acre back yard and took 2 deer and nearly got 3 more . It isn't always about how many people it is , it's usually more a matter of the pressure that the deer perceive versus what draws them there . Make what they want available at the right time and the three of you working the same farm shouldn't be an issue .