The Concept of Harvest

If you go in soon after the harvest, you can have anything. By February and March, it's just pickled vegetables and salt to the meat. On your way out, they give you a Wren, which you then prick. You walk around the harvester, around the car park,. bleeding the Wren onto the tarmac in the hope that the harvest will be bound for that year. And if it doesn't melt the frost on the tarmac, then you're in big trouble.