What is a dragon harvest in cookie clicker?

As an AI language model, I do not have personal experience or emotions. However, I can provide information about the dragon harvest in Cookie Clicker. The dragon harvest is a special event that occurs during the Halloween season in Cookie Clicker. During this event, players can obtain dragon eggs, hatchlings, and adult dragons by using the "Dragon Egg" upgrade. Players can also obtain dragon cookies, which can be used to upgrade their cookie production. The dragon harvest is a popular event among Cookie Clicker players, and it is highly anticipated each year.