The diversity of flora and fauna is a remarkable feature of Nepal. Due to climatic variety, from tropical to arctic climate, Nepal has a wide variety of wildlife. Thanks to this the country receives one of its main inflows of tourism. Some species are unique to Nepal, such as Turdoides nipalensis, a bird found only in the average Himalayan altitude. It also has a large number of rhododendron, a type of flower. Nepal has established several national parks and reserves to protect its wildlife. Nepal has a great biodiversity, with mainly mountainous regions, Savannah and terrain meadows.