An Egyptian Mau cat costs between  100 and 200 dollars, if you are looking for great bloodlines, however you can get cheaper ones with basic bloodlines for free if you place ads around looking for a mau.
Definition of guano. : a fertilizer containing the accumulated excrement of seabirds or bats; broadly : excrement especially of seabirds or bats.
Negative 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. It has been blamed for bat populations decreasing in areas where guano is harvested.