The process of guano formation begins with the birds or bats consuming fish, insects, or fruits. As they digest their food, nutrients are absorbed into their bodies, and the waste products are excreted as guano. The guano falls onto the ground or accumulates on ledges and crevices in the colonies. Over time, the guano accumulates, forming thick layers that can reach depths of several meters.
Guano is highly prized as a fertilizer due to its high nutrient content. It is often used in organic farming and gardening to provide essential nutrients for plants. However, due to the over-exploitation of guano deposits in the past, some guano-producing areas have become depleted, leading to conservation efforts to protect these valuable resources.