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exists and is an alternate of . The correct term is Guano. It is the feces and urine of seabirds, cave-dwelling bats, and seals. Guano manure is a highly effective fertilizer due to its high phosphorus and nitrogen content and its relative lack of odor compared to other forms of organic fertilizer such as horse manure.
The export of guano to Europe became economically beneficial for the farmers. Bat guano also has a long agricultural and economic history in Cuba. In the 21st century, feces from bat caves in the United States, Asia, Cuba and South America is marketed as the some of the best organic fertilizer available.egative Aspects. Some critics say that the harvesting of bat guano from caves has certain detrimental effects. The process, which is also called mining, disturbs the bats' habitat and can cause them to panic, which can result in the bats dropping their young, not eating or not getting enough rest.