RE: Buck vs. doe tracks
You are seeing the dewclaws. They are higher up on the hoof. Normally you will see them when the footing is soft and the foot goes deeper into the dirt. They can also be seen on heavier deer because the foot is holding up more weight therefore it sinks deeper into the ground. I don't think there is any positive way to identify a buck track vs. doe track. There are just some things that are more common to tracks made by bucks and tracks made by does.