If you need to harvest does where you are....a doe fawn, yearling, or adult will ultimately yeild the same result. One less doe, eating and having babies on your property. I don't hesitate to shoot any of the 3 if need be. TC is right on.

Some of the best advice I've ever heard given, was a biologist talking about shooting does:

The "correct" doe to harvest...is the first one that stands still long enough for you to get a clean shot.