Autumn is a bumper time for foraging in woods and hedgerows. Foraging is the act of gathering wild food for free. Although it's gained far greater popularity in recent years, for our distant ancestors foraging would simply have been a way of life.
NOTE : Positive identification is the most important part of becoming a safe hunter-gatherer. If you are not 100% certain you have identified it correctly, under no circumstances eat any wild fruit, raw or cooked.