Hundreds of British, German, and American ships purchased it from the Peruvian government for their own agriculture, waiting offshore up to eight months to load the precious cargo.no deposit pcp deals REIKA ROULETTE SYSTEM Guano is the accumulated excrement of seabirds or, for bat guano, cave-dwelling .. With Some Account of the Guano Deposits and Nitrate Plains. London: Newman & Co. Hollett, Davi (). More Precious than Gold: Guano Era · Guano Islands Act · Category:Guano · Peruvian booby. During the nation's guano boom from the s to the s, the proceeds from bird poo accounted for most of Peru's national budget. “We are recovering some of the last guano remaining in Peru,” said and a desperate effort here to prevent the deposits from being depleted.