Mantenga Nature Reserve, Mlawula Nature Reserve, Mlilwane Wildlife Sanctuary, and Mkhaya Game Reserve, and Hlane Royal National Park. In addition to these, there are many private and community nature reserves, as well as some with mixed governance structures. These include: Dombeya Game Reserve, Mbuluzi Game Reserve, Shewula Nature Reserve, Phophonyane Falls Nature Reserve, Royal Jozini, IYSIS (Inyoni Yami), Ngwempisi Wilderness, Sibebe and others. There are other entities that practice secondary or tertiary conservation, as well as two conservancies: the Mhlosinga Conservancy and the Lubombo Conservancy. Others include: the Natural History Society of Eswatini and the Eswatini Game Ranchers Association. From 2014 to 2021, Eswatini participated in the "Strengthening the National Protected Areas System" (SNPAS) project. This project attempted to strengthen conservation outcomes and the national footprint of biodiversity conservation across the country. In an effort to broaden the spectrum of areas eligible for conservation support (which practice bona-fide conservation management), the United Nations Development Programme (UNDP) established a new category for informal, or non-gazetted, conservation areas in 2018. These are now called OECMs, or Other Effective Conservation Measures. The SNPAS Project adopted this OECM terminology and began certifying informal conservation areas in Eswatini in 2021. There are known to be 507 bird species in Eswatini, including 11 globally threatened species and four introduced species, and 107 mammal species native to Eswatini, including the critically endangered South-central black rhinoceros and seven other endangered or vulnerable species. Eswatini is rich in bird life, including white-backed vultures, white-headed, lappet-faced and Cape vultures, raptors such as martial eagles, bateleurs, and long-crested eagles, and the southernmost nesting site of the marabou stork. Politics Monarchy Eswatini is an absolute monarchy with constitutional provision and Swazi law and customs. The head of state is the king or ngwenyama (lit. lion), currently King Mswati III, who ascended to the throne in 1986 after the death of his father King Sobhuza II in 1982 and a period of regency. According to the country's constitution, the ngwenyama is a symbol of unity and the eternity of the Swazi nation. By tradition, the king reigns along with his mother (or a ritual substitute), the ndlovukati (lit. she-elephant). The former was viewed as the administrative head of state and the latter as a spiritual and national head of state, with real power counterbalancing that of the king, but during the long reign of Sobhuza II, the role of the ndlovukati became more