Its hard to do for sure sometimes.But almost every doe you see has some smaller deer tagging behind. and if you shoot a lone doe,lots of times it is a button. Up here when you see 3 deer ,usually there a mom and her youngins. and when I see the herds of like 10 plus ,how do you determine which deer belongs to which deer? I would of hardly ever shot a doe if I only shot mature doe alone. But yes it does bother me sometimes.but that is nature. Not only that ,what else really gets me is to watch the young deer play and run around like kids in the fields. I just cant shoot a young deer anymore.