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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 following describes the common measures of bat performance: BPF, BESR, BBCOR and BBS. Once a bat has been tested, the data can be used to measure performance in a variety of ways. While some measures have been shown to correlate with field performance better than others, the best measure ultimately depends on the objectives of the association regulating performance.