“In the fall, acorns, filberts, and hickory nuts are gathered by wildlife as winter stores. Field and pack rats bring in smaller seed such as wild rice from the marshes. If storages are provided, these foragers will fill hollow pipes or logs, or smaller pipes, old vehicle engine manifolds, and nest boxes or wall cavities. Seed so collected is sound, clean, and neatly stored. Providing some 15% is left, and given over to winter food for these workers, 85% can be collected for human use. A few people regularly collect their hickory nuts or wild rice in this way, by providing dens for squirrels or pack rats. It is a question of cooperation and provision for others, instead of attempting to kill off the experts and do the job yourself.”

Source: Permaculture: A Designers' Manual (1988), chapter 12.15