For legality you are looking for a beard (at least where I hunt). If its your 1st season and your hunting with a bow I say take the 1st legal bird you can, its not an easy thing to do, and getting one under your belt will help with confidence.
Check out the fan in this picture, see how the feathers aren't all the same length and the center ones are longer than the rest? This is a jake (immature male).
Now check out my next post.