I haven't shot a doe in a few years because the neighbor behind me that owns 1250 acres of land has a large group of Wounded Warriors come every year and they shoot 15-20 does, so I will shoot one if I want to, but don't find it necessary to do so because they do it for me. When I do shoot I have two main things that I do that dictates what doe I shoot. I do not shoot a lone doe. They can often times be a button buck and with no other deer around it becomes harder to judge body size. A short head is another obvious fawn give away. The other thing is I shoot the largest doe out of the group to ensure the same thing. This may not be 100 percent fool proof, but the last time I shot a button buck was 1997, before I implemented those rules on to myself, so I feel confident that these two things are very effective.