Ngaya forest is a 40sq kilometers forest and is a habitat for various types of birds among them the guinea fowl. The Forest used to be referred to as the elephant maternity since the jumbos would go there to deliver their young ones. The forest is also source to rivers that flow to Meru National Park and home to a rich ecosystem comprising of different plant and animal species. Locals also depend on the forest for traditional medicine. Several species of unique butterflies are found only in this forest. The butterflies are of different beautiful colors and they are very common especially just before the rain season and are a key pointer to the beginning of the rains.