Guano
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Guano is the accumulated excrement of seabirds or bats. Guano is a highly effective fertiliser due to the high content of nitrogen, phosphate, and potassium, all key nutrients essential for plant grow
The nest of the Peruvian booby is made of almost pure guano.
Human-made Guano Island near Walvis Bay in Namibia
The guanay cormorant has historically been the most important producer of guano.
Insectivorous bats, such as this Mexican free-tailed bat, have historically been the most important producers of bat guano.
Peruvian booby
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The Peruvian booby is an endemic bird of the Peruvian current, and an important predator of the marine community to which it belongs. Its distribution is much less widespread than other closely relate
Guano
…the most abundant and important producer of guano. Other important guano-producing bird species off the coast of Peru are the Peruvian pelican and the Peruvian booby. The earliest European records noting the use of guano as fertiliser date back to 1548…
Peruvian Booby
Showing the brown upperparts of the wings
Showing the white underparts