guano

guano
/gwah"noh/, n.
1. a natural manure composed chiefly of the excrement of sea birds, found esp. on islands near the Peruvian coast.
2. any similar substance, as an artificial fertilizer made from fish.
[1595-1605; < Sp: fertilizer, dung; AmerSp huano dung < Quechua wanu dung for fuel, fertilizer]

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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.

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      accumulated excrement and remains of birds, bats, and seals, valued as fertilizer. Bird guano comes mainly from islands off the coasts of Peru, Baja (Lower) California, and Africa heavily populated by cormorants, pelicans, and gannets. Bat guano is found in caves throughout the world. Seal guano has accumulated to great depths on the Isla Lobos de Tierra and Islas Lobos de Afuera (Lobos Islands), off northwestern Peru. Bat and seal guano are lower in fertilizer value than bird guano, which contains about 11 to 16 percent nitrogen, 8 to 12 percent phosphoric acid, and 2 to 3 percent potash.

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Universalium. 2010.

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