The trogoniformes contains only one family (Trogonidae) with 7 genera and 43 species. It is a small order of brightly coloured birds found in most tropical countries except Australasia. The exact number of species is not finally defined yet, but it is around 43, these are divided between 7 genera and 1 family, Trogonidae. Commonly they are known as Trogons and are one of the most colourful orders of birds. The Resplendent Quetzal, Pharomachrus mocinno, is the national bird of Guatemala. It was believed to be of divine origin by the Aztecs and it was an offence to kill one. Trogoniform species are distributed throughout central and southern Africa, Southeast Asia, Central America, and north and central South America. Trogons usually live in tropical forests, being found from rainforests to tropical woodlands. Most species are scattered within the tropics and subtropics, usually inhabiting the middle elevations of forests. On the northern and southern edges of their habitat, trogons live in drier climates including thorn forests, bamboo thickets, and savannas (flat grasslands). Hunters and collectors have targeted trogons for their brilliant tail feathers. Trogans, especially the quetzal, have often been given special status among ancient peoples. Trogons are relatively common but are still adversely affected by habitat destruction from humans. Ten trogons are identified as Near Threatened, in danger of becoming threatened with extinction, on the World Conservation Union (IUCN) Red List in 2002.