A substance found in great abundance on some coasts or islands frequented by sea fowls, and composed chiefly of their excrement
the waste matter of sea birds Rich in nitrates and phosphates, guano was used worldwide as a fertilizer The Chincha Islands off of the coast of Peru, where guano deposits were as deep as 100 feet, were a major source for this product
Manure, i e , excretions, of bats and birds Can be purchased after being dried and composted
Guano is the faeces of sea birds and bats. It is used as a fertilizer. solid waste from sea birds, put on soil to help plants grow (huanu). Accumulated excrement and remains of birds, bats, and seals, valued as fertilizer. Bird guano comes mainly from islands off the coasts of Peru, Baja California, and Africa that are heavily populated by cormorants, pelicans, and gannets. Bat guano is found in caves throughout the world, and seal guano has accumulated to great depths on islands off northwestern Peru; both are lower in fertilizer value than bird guano
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