The exact number of species is not finally defined yet, but it is around 37, these are divided between 8 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. Unfortunately, since Cortes destroyed the Aztec empire this protection has been removed and its numbers have been steadily declining ever since.
All trogons are arboreal and most live entirely within forests or woods.
None are known to be migratory. They are unique in that they have the first and second toes pointing backwards while the third and fourth toes point forwards. This is known as heterodactylous. Compare this with the parrots and other birds which have two toes pointing each way where it is the first and fourth toes which point backwards and the second and third which point forwards, known as zygodactylous. Trogons are relatively wide mouthed birds, which gives their faces a look similar to nightjars and swifts.