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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.
1 The bat uses its kidneys to offload much of the water absorbed from a blood meal by excreting large volumes of dilute urine as it feeds. 2  Having lost enough water to fly, the bat returns to its roost in a cave or hollow tree, where it spends the day. 3  In the roost, the bat faces a very different regulatory problem.