The droppings of birds or bats. In some places, like penguin colonies, huge deposits of guano build up over many years. People sometimes harvest this guano to use as fertilizer for farms and gardens.
Be the first to post feedback! Click here to post feedback.
Post Feedback:
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.
