Feeders are the most common creepers. They do most of the work for a nest, clearing out debris from the tunnels, removing waste, bringing food and regurgitating it for newly hatched creepers, as well as stockpiling organic material for the consumption of others. When a nest is struggling, feeders are expendable. They may be sent out to find new food sources, possibly into highly dangerous areas, or may be called into the nest to serve as food for others. The term feeder thus refers to the group’s typical role and the eventual fate of most individuals.